{"id":"CVE-2024-38357","aliases":["CLSA-2026-1777423184","CLSA-2026-1777423186","EUVD-2024-2189","GHSA-5vm8-hhgr-jcjp","GHSA-w9jx-4g6g-rp7x","PYSEC-2026-1302","UBUNTU-CVE-2024-38357"],"status":"published","title":"TinyMCE Cross-Site Scripting (XSS) vulnerability using noscript elements","description":"TinyMCE is an open source rich text editor. A cross-site scripting (XSS) vulnerability was discovered in TinyMCE’s content parsing code. This allowed specially crafted noscript elements containing malicious code to be executed when that content was loaded into the editor. This vulnerability has been patched in TinyMCE 7.2.0, TinyMCE 6.8.4 and TinyMCE 5.11.0 LTS by ensuring that content within noscript elements are properly parsed. Users are advised to upgrade. There are no known workarounds for this vulnerability.","severity":{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00529,"percentile":0.45221,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-79"],"published":"2021-05-28T19:18:53Z","modified":"2026-10-28T02:31:11Z","fixes":[{"ecosystem":"npm","package":"tinymce","fixed_in":["5.7.1","5.11.0","6.8.4","7.2.0"],"sources":["ghsa","osv"]},{"ecosystem":"NuGet","package":"TinyMCE","fixed_in":["5.11.0","6.8.4","7.2.0"],"sources":["ghsa","osv"]},{"ecosystem":"Packagist","package":"tinymce/tinymce","fixed_in":["5.11.0","6.8.4","7.2.0"],"sources":["ghsa","osv"]},{"ecosystem":"PyPI","package":"django-tinymce","fixed_in":["4.1.0"],"sources":["ghsa","osv"]},{"ecosystem":"Ubuntu:Pro:22.04:LTS","package":"roundcube","fixed_in":["1.5.0+dfsg.1-2ubuntu0.1~esm6"],"sources":["osv"]},{"ecosystem":"Ubuntu:Pro:24.04:LTS","package":"roundcube","fixed_in":["1.6.6+dfsg-2ubuntu0.1+esm3"],"sources":["osv"]}],"affected":[{"source":"ghsa","ecosystem":"npm","package":"tinymce","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.7.1"}]}]},{"source":"ghsa","ecosystem":"npm","package":"tinymce","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.11.0"}]}]},{"source":"ghsa","ecosystem":"NuGet","package":"TinyMCE","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.11.0"}]}]},{"source":"ghsa","ecosystem":"Packagist","package":"tinymce/tinymce","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.11.0"}]}]},{"source":"ghsa","ecosystem":"npm","package":"tinymce","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"6.0.0"},{"fixed":"6.8.4"}]}]},{"source":"ghsa","ecosystem":"npm","package":"tinymce","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"7.0.0"},{"fixed":"7.2.0"}]}]},{"source":"ghsa","ecosystem":"NuGet","package":"TinyMCE","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"6.0.0"},{"fixed":"6.8.4"}]}]},{"source":"ghsa","ecosystem":"NuGet","package":"TinyMCE","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"7.0.0"},{"fixed":"7.2.0"}]}]},{"source":"ghsa","ecosystem":"Packagist","package":"tinymce/tinymce","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"6.0.0"},{"fixed":"6.8.4"}]}]},{"source":"ghsa","ecosystem":"Packagist","package":"tinymce/tinymce","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"7.0.0"},{"fixed":"7.2.0"}]}]},{"source":"ghsa","ecosystem":"PyPI","package":"django-tinymce","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"4.0.0"},{"fixed":"4.1.0"}]}]},{"source":"osv","ecosystem":"TuxCare:npm","package":"tinymce","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"4.9.11-tuxcare.0"},{"fixed":"4.9.11-tuxcare.1"}]}],"versions":["4.9.11"],"bundled":11},{"source":"osv","ecosystem":"TuxCare:npm","package":"tinymce","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"5.10.9-tuxcare.0"},{"fixed":"5.10.9-tuxcare.1"}]}],"versions":["5.10.9"],"bundled":4},{"source":"osv","ecosystem":"npm","package":"tinymce","ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"5.7.1"}]}]},{"source":"osv","ecosystem":"npm","package":"tinymce","ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"5.11.0"}]}]},{"source":"osv","ecosystem":"NuGet","package":"TinyMCE","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.11.0"}]}],"versions":["3.4.3.2","3.4.4","3.4.5","3.4.7","3.5.0","3.5.0.1","3.5.1","3.5.1.1","3.5.2","3.5.3","3.5.4","3.5.4.1","3.5.5","3.5.6","3.5.7","3.5.8","4.0.0","4.0.1","4.0.10","4.0.11","4.0.13","4.0.14","4.0.15","4.0.16","4.0.17","4.0.18","4.0.19","4.0.2","4.0.20","4.0.21","4.0.22","4.0.23","4.0.24","4.0.25","4.0.26","4.0.27","4.0.28","4.0.4","4.0.5","4.0.6","4.0.8","4.0.9","4.1.0","4.1.1","4.1.10","4.1.2","4.1.3","4.1.4","4.1.5","4.1.6","4.1.7","4.1.8","4.1.9","4.2.0","4.2.1","4.2.2","4.2.3","4.2.4","4.2.5","4.2.6","4.2.7","4.2.8","4.3.0","4.3.1","4.3.10","4.3.11","4.3.12","4.3.13","4.3.2","4.3.3","4.3.4","4.3.6","4.3.7","4.3.8","4.3.9","4.4.0","4.4.1","4.4.2","4.4.3","4.5.0","4.5.1","4.5.2","4.5.3","4.5.4","4.5.5","4.5.6","4.5.7","4.5.8","4.6.0","4.6.1","4.6.2","4.6.3","4.6.4","4.6.5","4.6.6","4.6.7","4.7.0","4.7.10","4.7.11","4.7.12","4.7.13","4.7.3","4.7.4","4.7.5","4.7.6","4.7.7","4.7.8","4.7.9","4.8.0","4.8.1","4.8.2","4.8.3","4.8.4","4.8.5","4.9.0","4.9.1","4.9.10","4.9.11","4.9.2","4.9.3","4.9.4","4.9.5","4.9.6","4.9.7","4.9.8","4.9.9","5.0.0","5.0.1","5.0.10","5.0.11","5.0.12","5.0.13","5.0.14","5.0.15","5.0.16","5.0.2","5.0.3","5.0.4","5.0.5","5.0.6","5.0.7","5.0.8","5.0.9","5.1.0","5.1.1","5.1.2","5.1.3","5.1.4","5.1.5","5.1.6","5.10.0","5.10.1","5.10.2","5.10.3","5.10.4","5.10.5","5.10.6","5.10.7","5.10.8","5.10.9","5.2.0","5.2.1","5.2.2","5.3.0","5.3.1","5.3.2","5.4.0","5.4.1","5.4.2","5.5.0","5.5.1","5.6.0","5.6.1","5.6.2","5.7.0","5.7.1","5.8.0","5.8.1","5.8.2","5.9.0","5.9.1","5.9.2"]},{"source":"osv","ecosystem":"Packagist","package":"tinymce/tinymce","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.11.0"}]}],"versions":["4.0.0","4.0.1","4.0.10","4.0.11","4.0.12","4.0.13","4.0.14","4.0.15","4.0.16","4.0.17","4.0.18","4.0.19","4.0.2","4.0.20","4.0.21","4.0.22","4.0.23","4.0.24","4.0.25","4.0.26","4.0.27","4.0.28","4.0.3","4.0.4","4.0.5","4.0.6","4.0.7","4.0.8","4.0.9","4.1.0","4.1.1","4.1.10","4.1.2","4.1.3","4.1.4","4.1.5","4.1.6","4.1.7","4.1.8","4.1.9","4.2.0","4.2.1","4.2.2","4.2.3","4.2.4","4.2.5","4.2.6","4.2.7","4.2.8","4.3.0","4.3.1","4.3.10","4.3.11","4.3.12","4.3.13","4.3.2","4.3.3","4.3.4","4.3.6","4.3.7","4.3.8","4.3.9","4.4.0","4.4.1","4.4.2","4.4.3","4.5.0","4.5.1","4.5.12","4.5.2","4.5.3","4.5.4","4.5.5","4.5.6","4.5.7","4.5.8","4.5.9","4.6.0","4.6.1","4.6.2","4.6.3","4.6.4","4.6.5","4.6.6","4.6.7","4.7.0","4.7.1","4.7.10","4.7.11","4.7.12","4.7.13","4.7.2","4.7.3","4.7.4","4.7.5","4.7.6","4.7.7","4.7.8","4.7.9","4.8.0","4.8.1","4.8.2","4.8.3","4.8.4","4.8.5","4.9.0","4.9.1","4.9.10","4.9.11","4.9.2","4.9.3","4.9.4","4.9.5","4.9.6","4.9.7","4.9.8","4.9.9","5.0.0","5.0.1","5.0.10","5.0.11","5.0.12","5.0.13","5.0.14","5.0.15","5.0.16","5.0.2","5.0.3","5.0.4","5.0.5","5.0.6","5.0.7","5.0.8","5.0.9","5.1.0","5.1.1","5.1.2","5.1.3","5.1.4","5.1.5","5.1.6","5.10.0","5.10.1","5.10.2","5.10.3","5.10.4","5.10.5","5.10.6","5.10.7","5.10.8","5.10.9","5.2.0","5.2.1","5.2.2","5.3.0","5.3.1","5.3.2","5.4.0","5.4.1","5.4.2","5.5.0","5.5.1","5.6.0","5.6.1","5.6.2","5.7.0","5.7.1","5.8.0","5.8.1","5.8.2","5.9.0","5.9.1","5.9.2"]},{"source":"osv","ecosystem":"npm","package":"tinymce","ranges":[{"type":"SEMVER","events":[{"introduced":"6.0.0"},{"fixed":"6.8.4"}]}]},{"source":"osv","ecosystem":"npm","package":"tinymce","ranges":[{"type":"SEMVER","events":[{"introduced":"7.0.0"},{"fixed":"7.2.0"}]}]},{"source":"osv","ecosystem":"NuGet","package":"TinyMCE","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"6.0.0"},{"fixed":"6.8.4"}]}],"versions":["6.0.0","6.0.1","6.0.2","6.0.3","6.1.0","6.1.1","6.1.2","6.2.0","6.3.0","6.3.1","6.3.2","6.4.0","6.4.1","6.4.2","6.5.0","6.5.1","6.6.2","6.7.0","6.7.1","6.7.2","6.7.3","6.8.0","6.8.1","6.8.2","6.8.3"]},{"source":"osv","ecosystem":"NuGet","package":"TinyMCE","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"7.0.0"},{"fixed":"7.2.0"}]}],"versions":["7.0.0","7.0.1","7.1.0","7.1.1","7.1.2"]},{"source":"osv","ecosystem":"Packagist","package":"tinymce/tinymce","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"6.0.0"},{"fixed":"6.8.4"}]}],"versions":["6.0.0","6.0.1","6.0.2","6.0.3","6.1.0","6.1.1","6.1.2","6.2.0","6.3.0","6.3.1","6.3.2","6.4.0","6.4.1","6.4.2","6.5.0","6.5.1","6.6.0","6.6.1","6.6.2","6.7.0","6.7.1","6.7.2","6.7.3","6.8.0","6.8.1","6.8.2","6.8.3"]},{"source":"osv","ecosystem":"Packagist","package":"tinymce/tinymce","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"7.0.0"},{"fixed":"7.2.0"}]}],"versions":["7.0.0","7.0.1","7.1.0","7.1.1","7.1.2"]},{"source":"osv","ecosystem":"PyPI","package":"django-tinymce","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.1.0"}]}],"versions":["1.0","1.1","1.2","1.3","1.4","1.4.1","1.5","1.5.1","1.5.1.dev100","1.5.1.dev101","1.5.1a1","1.5.1a2","1.5.1a3","1.5.1b1","1.5.1b2","1.5.1b3","1.5.1b4","1.5.2","1.5.3","1.5.4","2.0.0","2.0.1","2.0.2","2.0.3","2.0.4","2.0.5","2.0.6","2.0.7","2.1.0","2.2.0","2.3.0","2.4.0","2.5.0","2.6.0","2.6.1","2.7.0","2.7.1","2.8.0","2.9.0","3.0.1","3.0.2","3.1.0","3.2.0","3.3.0","3.4.0","3.5.0","3.6.0","3.6.1","3.7.0","3.7.1","4.0.0"]},{"source":"osv","ecosystem":"PyPI","package":"django-tinymce","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.1.0"}]}],"versions":["1.0","1.1","1.2","1.3","1.4","1.4.1","1.5","1.5.1","1.5.1.dev100","1.5.1.dev101","1.5.1a1","1.5.1a2","1.5.1a3","1.5.1b1","1.5.1b2","1.5.1b3","1.5.1b4","1.5.2","1.5.3","1.5.4","2.0.0","2.0.1","2.0.2","2.0.3","2.0.4","2.0.5","2.0.6","2.0.7","2.1.0","2.2.0","2.3.0","2.4.0","2.5.0","2.6.0","2.6.1","2.7.0","2.7.1","2.8.0","2.9.0","3.0.1","3.0.2","3.1.0","3.2.0","3.3.0","3.4.0","3.5.0","3.6.0","3.6.1","3.7.0","3.7.1","4.0.0"]},{"source":"osv","ecosystem":"Ubuntu:Pro:22.04:LTS","package":"roundcube","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.5.0+dfsg.1-2ubuntu0.1~esm6"}]}],"versions":["1.4.11+dfsg.1-4","1.5.0+dfsg.1-2","1.5.0+dfsg.1-2ubuntu0.1~esm1","1.5.0+dfsg.1-2ubuntu0.1~esm2","1.5.0+dfsg.1-2ubuntu0.1~esm3","1.5.0+dfsg.1-2ubuntu0.1~esm4","1.5.0+dfsg.1-2ubuntu0.1~esm5"]},{"source":"osv","ecosystem":"Ubuntu:Pro:24.04:LTS","package":"roundcube","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.6.6+dfsg-2ubuntu0.1+esm3"}]}],"versions":["1.6.2+dfsg-1","1.6.4+dfsg-1","1.6.5+dfsg-1","1.6.6+dfsg-1","1.6.6+dfsg-2","1.6.6+dfsg-2ubuntu0.1","1.6.6+dfsg-2ubuntu0.1+esm1","1.6.6+dfsg-2ubuntu0.1+esm2"]},{"source":"osv","ecosystem":"Ubuntu:25.10","package":"roundcube","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.6.10+dfsg-1","1.6.10+dfsg-2","1.6.11+dfsg-1"]},{"source":"osv","ecosystem":"Ubuntu:26.10","package":"roundcube","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.6.11+dfsg-1"]},{"source":"osv","ecosystem":"Ubuntu:Pro:26.04:LTS","package":"roundcube","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.6.11+dfsg-1","1.6.11+dfsg-1ubuntu0.26.04.1~esm1"]}],"products":[{"vendor":"tinymce","product":"tinymce"}],"references":[{"url":"https://github.com/tinymce/tinymce/security/advisories/GHSA-w9jx-4g6g-rp7x","tags":["x_refsource_CONFIRM","x_transferred","advisory","web","report"]},{"url":"https://github.com/tinymce/tinymce/commit/5acb741665a98e83d62b91713c800abbff43b00d","tags":["x_refsource_MISC","x_transferred","fix","web","report"]},{"url":"https://owasp.org/www-community/attacks/xss","tags":["x_refsource_MISC","x_transferred","web","report"]},{"url":"https://www.tiny.cloud/docs/tinymce/6/6.8.4-release-notes/#overview","tags":["x_refsource_MISC","x_transferred","web","report"]},{"url":"https://www.tiny.cloud/docs/tinymce/7/7.2-release-notes/#overview","tags":["x_refsource_MISC","x_transferred","web","report"]},{"url":"https://github.com/tinymce/tinymce/security/advisories/GHSA-5vm8-hhgr-jcjp","tags":["web"]},{"url":"https://github.com/advisories/GHSA-5vm8-hhgr-jcjp"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2024-38357","tags":["advisory"]},{"url":"https://github.com/tinymce/tinymce/commit/a9fb858509f86dacfa8b01cfd34653b408983ac0","tags":["web"]},{"url":"https://github.com/advisories/GHSA-w9jx-4g6g-rp7x","tags":["advisory"]},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/38xxx/CVE-2024-38357.json","tags":["advisory"]},{"url":"https://github.com/tinymce/tinymce","tags":["package"]},{"url":"https://pypi.org/project/django-tinymce","tags":["package"]},{"url":"https://ubuntu.com/security/CVE-2024-38357","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2024-38357","tags":["report"]},{"url":"https://ubuntu.com/security/notices/USN-8223-1","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2024-38357","title":"TinyMCE Cross-Site Scripting (XSS) vulnerability using noscript elements","description":"TinyMCE is an open source rich text editor. A cross-site scripting (XSS) vulnerability was discovered in TinyMCE’s content parsing code. This allowed specially crafted noscript elements containing malicious code to be executed when that content was loaded into the editor. This vulnerability has been patched in TinyMCE 7.2.0, TinyMCE 6.8.4 and TinyMCE 5.11.0 LTS by ensuring that content within noscript elements are properly parsed. Users are advised to upgrade. There are no known workarounds for this vulnerability.\n","status":"published","published":"2024-06-19T20:03:49.806Z","modified":"2024-08-02T04:04:25.258Z","cvss":[{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"cna"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:34:16.007021Z"}],"euvd":[{"id":"EUVD-2024-2189","description":"TinyMCE is an open source rich text editor. A cross-site scripting (XSS) vulnerability was discovered in TinyMCE’s content parsing code. This allowed specially crafted noscript elements containing malicious code to be executed when that content was loaded into the editor. This vulnerability has been patched in TinyMCE 7.2.0, TinyMCE 6.8.4 and TinyMCE 5.11.0 LTS by ensuring that content within noscript elements are properly parsed. Users are advised to upgrade. There are no known workarounds for this vulnerability.\n","status":"published","published":"2024-06-19T20:03:49Z","modified":"2024-08-02T04:04:25Z","cvss":[{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium"}],"updated_at":"2026-11-03T03:50:18.901913Z"}],"ghsa":[{"id":"GHSA-w9jx-4g6g-rp7x","title":"TinyMCE Cross-Site Scripting (XSS) vulnerability using noscript elements","description":"### Impact\nA [cross-site scripting (XSS)](https://owasp.org/www-community/attacks/xss/) vulnerability was discovered in TinyMCE’s content parsing code. This allowed specially crafted noscript elements containing malicious code to be executed when that content was loaded into the editor.\n\n### Patches\nThis vulnerability has been patched in TinyMCE 7.2.0, TinyMCE 6.8.4 and TinyMCE 5.11.0 LTS by ensuring that content within noscript elements are properly parsed.\n\n### Fix\nTo avoid this vulnerability:\n\n* Upgrade to TinyMCE 7.2.0 or higher.\n* Upgrade to TinyMCE 6.8.4 or higher for TinyMCE 6.x.\n* Upgrade to TinyMCE 5.11.0 LTS or higher for TinyMCE 5.x (only available as part of commercial [long-term support](https://www.tiny.cloud/long-term-support/) contract).\n\n### Acknowledgements\nTiny thanks [Malav Khatri](https://malavkhatri.com/) and another reporter for their help identifying this vulnerability.\n\n### References\n* [TinyMCE 6.8.4](https://www.tiny.cloud/docs/tinymce/6/6.8.4-release-notes/#overview)\n* [TinyMCE 7.2.0](https://www.tiny.cloud/docs/tinymce/7/7.2-release-notes/#overview)\n\n### For more information\nIf you have any questions or comments about this advisory:\n\n* Email us at [infosec@tiny.cloud](mailto:infosec@tiny.cloud)\n* Open an issue in the [TinyMCE repo](https://github.com/tinymce/tinymce/issues?q=is%3Aissue+is%3Aopen+sort%3Aupdated-desc)\n","status":"published","published":"2024-06-19T15:07:03Z","modified":"2024-08-04T05:01:03Z","cvss":[{"version":"4.0","score":5.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:N/SI:L/SA:L","level":"medium"},{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:37:57.422393Z"},{"id":"GHSA-5vm8-hhgr-jcjp","title":"Cross-site scripting vulnerability in TinyMCE","description":"### Impact\nA cross-site scripting (XSS) vulnerability was discovered in the URL sanitization logic of the core parser for `form` elements. The vulnerability allowed arbitrary JavaScript execution when inserting a specially crafted piece of content into the editor using the clipboard or APIs, and then submitting the form. However, as TinyMCE does not allow forms to be submitted while editing, the vulnerability could only be triggered when the content was previewed or rendered outside of the editor. This impacts all users who are using TinyMCE 5.7.0 or lower.\n\n### Patches\nThis vulnerability has been patched in TinyMCE 5.7.1 by improved URL sanitization logic.\n\n### Workarounds\nTo work around this vulnerability, either:\n- Upgrade to TinyMCE 5.7.1 or higher\n- Manually sanitize `form` URL attributes using a [TinyMCE node filter](https://www.tiny.cloud/docs/api/tinymce.html/tinymce.html.domparser/#addnodefilter).\n- Disable `form` elements in your content using the [invalid_elements](https://www.tiny.cloud/docs/configure/content-filtering/#invalid_elements) setting.\n\n#### Example: Sanitizing using a node filter\n```js\neditor.parser.addNodeFilter('form', function(nodes) {\n  nodes.forEach(function(node) {\n    if (node.attributes) {\n      node.attributes.forEach(function(attr) {\n        var name = attr.name;\n        var value = attr.value;\n        // Sanitize the attribute value here or remove it entirely\n        var sanitizedValue = ...;\n        node.attr(name, santizedValue);\n      });\n    }\n  });\n});\n```\n\n#### Example: Using invalid_elements\n```js\ninvalid_elements: 'form'\n```\n\n### Acknowledgements\nTiny Technologies would like to thank Mikhail Khramenkov at Solar Security Research Team for discovering this vulnerability.\n\n### References\nhttps://www.tiny.cloud/docs/release-notes/release-notes571/#securityfixes\n\n### For more information\nIf you have any questions or comments about this advisory:\n* Open an issue in the [TinyMCE repo](https://github.com/tinymce/tinymce/issues)\n* Email us at [infosec@tiny.cloud](mailto:infosec@tiny.cloud)","status":"published","published":"2021-05-28T19:18:53Z","modified":"2023-01-09T05:05:07Z","cwes":["CWE-79"],"updated_at":"2026-11-02T14:36:11.367194Z"}],"nvd":[{"id":"CVE-2024-38357","description":"TinyMCE is an open source rich text editor. A cross-site scripting (XSS) vulnerability was discovered in TinyMCE’s content parsing code. This allowed specially crafted noscript elements containing malicious code to be executed when that content was loaded into the editor. This vulnerability has been patched in TinyMCE 7.2.0, TinyMCE 6.8.4 and TinyMCE 5.11.0 LTS by ensuring that content within noscript elements are properly parsed. Users are advised to upgrade. There are no known workarounds for this vulnerability.\n","status":"published","published":"2024-06-19T20:15:11.727Z","modified":"2026-06-17T07:39:59.21Z","cvss":[{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"secondary"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:10:07.173605Z"}],"osv":[{"id":"CVE-2024-38357","title":"TinyMCE Cross-Site Scripting (XSS) vulnerability using noscript elements","description":"TinyMCE is an open source rich text editor. A cross-site scripting (XSS) vulnerability was discovered in TinyMCE’s content parsing code. This allowed specially crafted noscript elements containing malicious code to be executed when that content was loaded into the editor. This vulnerability has been patched in TinyMCE 7.2.0, TinyMCE 6.8.4 and TinyMCE 5.11.0 LTS by ensuring that content within noscript elements are properly parsed. Users are advised to upgrade. There are no known workarounds for this vulnerability.\n","status":"published","published":"2024-06-19T20:03:49.806Z","modified":"2026-10-28T02:31:11.537304218Z","cvss":[{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T15:44:41.133403Z"},{"id":"GHSA-w9jx-4g6g-rp7x","title":"TinyMCE Cross-Site Scripting (XSS) vulnerability using noscript elements","description":"### Impact\nA [cross-site scripting (XSS)](https://owasp.org/www-community/attacks/xss/) vulnerability was discovered in TinyMCE’s content parsing code. This allowed specially crafted noscript elements containing malicious code to be executed when that content was loaded into the editor.\n\n### Patches\nThis vulnerability has been patched in TinyMCE 7.2.0, TinyMCE 6.8.4 and TinyMCE 5.11.0 LTS by ensuring that content within noscript elements are properly parsed.\n\n### Fix\nTo avoid this vulnerability:\n\n* Upgrade to TinyMCE 7.2.0 or higher.\n* Upgrade to TinyMCE 6.8.4 or higher for TinyMCE 6.x.\n* Upgrade to TinyMCE 5.11.0 LTS or higher for TinyMCE 5.x (only available as part of commercial [long-term support](https://www.tiny.cloud/long-term-support/) contract).\n\n### Acknowledgements\nTiny thanks [Malav Khatri](https://malavkhatri.com/) and another reporter for their help identifying this vulnerability.\n\n### References\n* [TinyMCE 6.8.4](https://www.tiny.cloud/docs/tinymce/6/6.8.4-release-notes/#overview)\n* [TinyMCE 7.2.0](https://www.tiny.cloud/docs/tinymce/7/7.2-release-notes/#overview)\n\n### For more information\nIf you have any questions or comments about this advisory:\n\n* Email us at [infosec@tiny.cloud](mailto:infosec@tiny.cloud)\n* Open an issue in the [TinyMCE repo](https://github.com/tinymce/tinymce/issues?q=is%3Aissue+is%3Aopen+sort%3Aupdated-desc)\n","status":"published","published":"2024-06-19T15:07:03Z","modified":"2026-09-10T03:50:17.091452211Z","cvss":[{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium"},{"version":"4.0","score":5.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:N/SI:L/SA:L","level":"medium"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T15:46:58.401149Z"},{"id":"PYSEC-2026-1302","title":"TinyMCE Cross-Site Scripting (XSS) vulnerability using noscript elements","description":"### Impact\nA [cross-site scripting (XSS)](https://owasp.org/www-community/attacks/xss/) vulnerability was discovered in TinyMCE’s content parsing code. This allowed specially crafted noscript elements containing malicious code to be executed when that content was loaded into the editor.\n\n### Patches\nThis vulnerability has been patched in TinyMCE 7.2.0, TinyMCE 6.8.4 and TinyMCE 5.11.0 LTS by ensuring that content within noscript elements are properly parsed.\n\n### Fix\nTo avoid this vulnerability:\n\n* Upgrade to TinyMCE 7.2.0 or higher.\n* Upgrade to TinyMCE 6.8.4 or higher for TinyMCE 6.x.\n* Upgrade to TinyMCE 5.11.0 LTS or higher for TinyMCE 5.x (only available as part of commercial [long-term support](https://www.tiny.cloud/long-term-support/) contract).\n\n### Acknowledgements\nTiny thanks [Malav Khatri](https://malavkhatri.com/) and another reporter for their help identifying this vulnerability.\n\n### References\n* [TinyMCE 6.8.4](https://www.tiny.cloud/docs/tinymce/6/6.8.4-release-notes/#overview)\n* [TinyMCE 7.2.0](https://www.tiny.cloud/docs/tinymce/7/7.2-release-notes/#overview)\n\n### For more information\nIf you have any questions or comments about this advisory:\n\n* Email us at [infosec@tiny.cloud](mailto:infosec@tiny.cloud)\n* Open an issue in the [TinyMCE repo](https://github.com/tinymce/tinymce/issues?q=is%3Aissue+is%3Aopen+sort%3Aupdated-desc)\n","status":"published","published":"2026-07-07T14:34:34.89262Z","modified":"2026-07-07T17:46:38.05258433Z","cvss":[{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium"},{"version":"4.0","score":5.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:N/SI:L/SA:L","level":"medium"}],"updated_at":"2026-11-02T15:52:54.622769Z"},{"id":"UBUNTU-CVE-2024-38357","description":"TinyMCE is an open source rich text editor. A cross-site scripting (XSS) vulnerability was discovered in TinyMCE’s content parsing code. This allowed specially crafted noscript elements containing malicious code to be executed when that content was loaded into the editor. This vulnerability has been patched in TinyMCE 7.2.0, TinyMCE 6.8.4 and TinyMCE 5.11.0 LTS by ensuring that content within noscript elements are properly parsed. Users are advised to upgrade. There are no known workarounds for this vulnerability.","status":"published","published":"2024-06-19T20:15:00Z","modified":"2026-10-17T12:56:36.990559914Z","cvss":[{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium"}],"updated_at":"2026-11-02T16:54:54.69008Z"},{"id":"CLSA-2026-1777423184","title":"TuxCare security update for tinymce (12 CVEs)","description":"TuxCare rebuilt tinymce to address 12 CVEs. Fixed in 4.9.11-tuxcare.1.","status":"published","published":"2026-08-04T14:52:29Z","modified":"2026-10-23T13:58:18.137089536Z","updated_at":"2026-11-02T15:43:44.384419Z"},{"id":"CLSA-2026-1777423186","title":"TuxCare security update for tinymce (4 CVEs)","description":"TuxCare rebuilt tinymce to address 4 CVEs. Fixed in 5.10.9-tuxcare.1.","status":"published","published":"2026-08-04T14:52:29Z","modified":"2026-10-15T09:45:51.134352098Z","updated_at":"2026-11-02T15:43:44.384419Z"},{"id":"GHSA-5vm8-hhgr-jcjp","title":"Cross-site scripting vulnerability in TinyMCE","description":"### Impact\nA cross-site scripting (XSS) vulnerability was discovered in the URL sanitization logic of the core parser for `form` elements. The vulnerability allowed arbitrary JavaScript execution when inserting a specially crafted piece of content into the editor using the clipboard or APIs, and then submitting the form. However, as TinyMCE does not allow forms to be submitted while editing, the vulnerability could only be triggered when the content was previewed or rendered outside of the editor. This impacts all users who are using TinyMCE 5.7.0 or lower.\n\n### Patches\nThis vulnerability has been patched in TinyMCE 5.7.1 by improved URL sanitization logic.\n\n### Workarounds\nTo work around this vulnerability, either:\n- Upgrade to TinyMCE 5.7.1 or higher\n- Manually sanitize `form` URL attributes using a [TinyMCE node filter](https://www.tiny.cloud/docs/api/tinymce.html/tinymce.html.domparser/#addnodefilter).\n- Disable `form` elements in your content using the [invalid_elements](https://www.tiny.cloud/docs/configure/content-filtering/#invalid_elements) setting.\n\n#### Example: Sanitizing using a node filter\n```js\neditor.parser.addNodeFilter('form', function(nodes) {\n  nodes.forEach(function(node) {\n    if (node.attributes) {\n      node.attributes.forEach(function(attr) {\n        var name = attr.name;\n        var value = attr.value;\n        // Sanitize the attribute value here or remove it entirely\n        var sanitizedValue = ...;\n        node.attr(name, santizedValue);\n      });\n    }\n  });\n});\n```\n\n#### Example: Using invalid_elements\n```js\ninvalid_elements: 'form'\n```\n\n### Acknowledgements\nTiny Technologies would like to thank Mikhail Khramenkov at Solar Security Research Team for discovering this vulnerability.\n\n### References\nhttps://www.tiny.cloud/docs/release-notes/release-notes571/#securityfixes\n\n### For more information\nIf you have any questions or comments about this advisory:\n* Open an issue in the [TinyMCE repo](https://github.com/tinymce/tinymce/issues)\n* Email us at [infosec@tiny.cloud](mailto:infosec@tiny.cloud)","status":"published","published":"2021-05-28T19:18:53Z","modified":"2021-05-27T21:29:43Z","cwes":["CWE-79"],"updated_at":"2026-11-02T15:46:38.911014Z"}]}}