{"id":"CVE-2026-47759","aliases":["CLSA-2026-1781052744","CLSA-2026-1783904630","CLSA-2026-1784077492","EUVD-2026-32921","GHSA-q742-qvgc-gc2f","UBUNTU-CVE-2026-47759"],"status":"published","title":"TinyMCE Cross-Site Scripting (XSS) vulnerability using through data-mce- prefixed src, href, style attributes","description":"TinyMCE is an open source rich text editor. Prior to 5.11.1, 7.9.3, and 8.5.1, there is a stored XSS vulnerability via unsanitized data-mce-* attributes (data-mce-href, data-mce-src, data-mce-style). Allows attackers to inject malicious values that override safe attributes during serialization, bypassing validation. This vulnerability is fixed in 5.11.1, 7.9.3, and 8.5.1.","severity":{"version":"3.1","score":8.7,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.00281,"percentile":0.20824,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-79"],"published":"2026-05-28T15:20:11Z","modified":"2026-10-28T02:31:10Z","fixes":[{"ecosystem":"npm","package":"tinymce","fixed_in":["7.9.3","8.5.1"],"sources":["ghsa","osv"]},{"ecosystem":"NuGet","package":"TinyMCE","fixed_in":["7.9.3","8.5.1"],"sources":["ghsa","osv"]},{"ecosystem":"Packagist","package":"tinymce/tinymce","fixed_in":["7.9.3","8.5.1"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"npm","package":"tinymce","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"6.0.0"},{"fixed":"7.9.3"}]}]},{"source":"ghsa","ecosystem":"npm","package":"tinymce","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"8.0.0"},{"fixed":"8.5.1"}]}]},{"source":"ghsa","ecosystem":"NuGet","package":"TinyMCE","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"6.0.0"},{"fixed":"7.9.3"}]}]},{"source":"ghsa","ecosystem":"NuGet","package":"TinyMCE","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"8.0.0"},{"fixed":"8.5.1"}]}]},{"source":"ghsa","ecosystem":"Packagist","package":"tinymce/tinymce","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"6.0.0"},{"fixed":"7.9.3"}]}]},{"source":"ghsa","ecosystem":"Packagist","package":"tinymce/tinymce","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"8.0.0"},{"fixed":"8.5.1"}]}]},{"source":"ghsa","ecosystem":"npm","package":"tinymce","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"5.10.9"}]}]},{"source":"ghsa","ecosystem":"NuGet","package":"TinyMCE","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"5.10.9"}]}]},{"source":"ghsa","ecosystem":"Packagist","package":"tinymce/tinymce","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"5.10.9"}]}]},{"source":"osv","ecosystem":"TuxCare:npm","package":"tinymce","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"6.8.6-tuxcare.0"},{"fixed":"6.8.6-tuxcare.4"}]}],"versions":["6.8.6","6.8.6-tuxcare.1","6.8.6-tuxcare.2","6.8.6-tuxcare.3"],"bundled":4},{"source":"osv","ecosystem":"TuxCare:npm","package":"tinymce","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"4.9.11-tuxcare.0"},{"fixed":"4.9.11-tuxcare.2"}]}],"versions":["4.9.11","4.9.11-tuxcare.1"],"bundled":3},{"source":"osv","ecosystem":"TuxCare:npm","package":"tinymce","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"5.10.9-tuxcare.0"},{"fixed":"5.10.9-tuxcare.2"}]}],"versions":["5.10.9","5.10.9-tuxcare.1"],"bundled":3},{"source":"osv","ecosystem":"npm","package":"tinymce","ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"last_affected":"5.10.9"}]}]},{"source":"osv","ecosystem":"npm","package":"tinymce","ranges":[{"type":"SEMVER","events":[{"introduced":"6.0.0"},{"fixed":"7.9.3"}]}]},{"source":"osv","ecosystem":"npm","package":"tinymce","ranges":[{"type":"SEMVER","events":[{"introduced":"8.0.0"},{"fixed":"8.5.1"}]}]},{"source":"osv","ecosystem":"NuGet","package":"TinyMCE","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"5.10.9"}]}],"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":"NuGet","package":"TinyMCE","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"6.0.0"},{"fixed":"7.9.3"}]}],"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","6.8.4","6.8.5","6.8.6","7.0.0","7.0.1","7.1.0","7.1.1","7.1.2","7.2.0","7.2.1","7.3.0","7.4.0","7.4.1","7.5.0","7.5.1","7.6.0","7.6.1","7.7.0","7.7.1","7.7.2","7.8.0","7.9.0","7.9.1","7.9.2"]},{"source":"osv","ecosystem":"NuGet","package":"TinyMCE","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"8.0.0"},{"fixed":"8.5.1"}]}],"versions":["8.0.0","8.0.1","8.0.2","8.1.0","8.1.1","8.1.2","8.2.0","8.2.1","8.2.2","8.3.0","8.3.1","8.3.2","8.4.0","8.5.0"]},{"source":"osv","ecosystem":"Packagist","package":"tinymce/tinymce","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"5.10.9"}]}],"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":"Packagist","package":"tinymce/tinymce","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"6.0.0"},{"fixed":"7.9.3"}]}],"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","6.8.4","6.8.5","6.8.6","7.0.0","7.0.1","7.1.0","7.1.1","7.1.2","7.2.0","7.2.1","7.3.0","7.4.0","7.4.1","7.5.0","7.5.1","7.6.0","7.6.1","7.7.0","7.7.1","7.7.2","7.8.0","7.9.0","7.9.1","7.9.2"]},{"source":"osv","ecosystem":"Packagist","package":"tinymce/tinymce","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"8.0.0"},{"fixed":"8.5.1"}]}],"versions":["8.0.0","8.0.1","8.0.2","8.1.0","8.1.1","8.1.2","8.2.0","8.2.1","8.2.2","8.3.0","8.3.1","8.3.2","8.4.0","8.5.0"]},{"source":"osv","ecosystem":"Ubuntu:16.04:LTS","package":"tinymce","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.4.8+dfsg0-1"]},{"source":"osv","ecosystem":"Ubuntu:18.04:LTS","package":"tinymce","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.4.8+dfsg0-2"]},{"source":"osv","ecosystem":"Ubuntu:20.04:LTS","package":"tinymce","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.4.8+dfsg0-2"]}],"products":[{"vendor":"tiny","product":"tinymce"},{"vendor":"tinymce","product":"tinymce"}],"references":[{"url":"https://github.com/tinymce/tinymce/security/advisories/GHSA-q742-qvgc-gc2f","tags":["x_refsource_CONFIRM","Patch","Vendor Advisory","advisory","web","report"]},{"url":"https://www.tiny.cloud/docs/tinymce/7/7.9.3-release-notes/#overview","tags":["x_refsource_MISC","Release Notes","web","report"]},{"url":"https://www.tiny.cloud/docs/tinymce/8/8.5.1-release-notes/#overview","tags":["x_refsource_MISC","Release Notes","web","report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-47759","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-q742-qvgc-gc2f"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/47xxx/CVE-2026-47759.json","tags":["advisory"]},{"url":"https://github.com/tinymce/tinymce","tags":["package"]},{"url":"https://ubuntu.com/security/CVE-2026-47759","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-47759","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2026-47759","title":"TinyMCE Cross-Site Scripting (XSS) vulnerability using through data-mce- prefixed src, href, style attributes","description":"TinyMCE is an open source rich text editor. Prior to 5.11.1, 7.9.3, and 8.5.1, there is a stored XSS vulnerability via unsanitized data-mce-* attributes (data-mce-href, data-mce-src, data-mce-style). Allows attackers to inject malicious values that override safe attributes during serialization, bypassing validation. This vulnerability is fixed in 5.11.1, 7.9.3, and 8.5.1.","status":"published","published":"2026-05-28T15:20:11.242Z","modified":"2026-05-30T01:58:37.777Z","cvss":[{"version":"3.1","score":8.7,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N","level":"high","assessor":"cna"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T13:36:40.478484Z"}],"euvd":[{"id":"EUVD-2026-32921","description":"TinyMCE is an open source rich text editor. Prior to 5.11.1, 7.9.3, and 8.5.1, there is a stored XSS vulnerability via unsanitized data-mce-* attributes (data-mce-href, data-mce-src, data-mce-style). Allows attackers to inject malicious values that override safe attributes during serialization, bypassing validation. This vulnerability is fixed in 5.11.1, 7.9.3, and 8.5.1.","status":"published","published":"2026-05-28T15:20:11Z","modified":"2026-05-30T01:58:37Z","cvss":[{"version":"3.1","score":8.7,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N","level":"high"}],"updated_at":"2026-11-02T18:20:59.967985Z"}],"ghsa":[{"id":"GHSA-q742-qvgc-gc2f","title":"TinyMCE Cross-Site Scripting (XSS) vulnerability using through data-mce- prefixed src, href, style attributes","description":"### Impact\nStored XSS vulnerability via unsanitized data-mce-* attributes (data-mce-href, data-mce-src, data-mce-style). Allows attackers to inject malicious values that override safe attributes during serialization, bypassing validation.\n\n### Patches\nPatched by stripping unsafe data-mce-* attributes during parsing. Users should upgrade to the latest patched versions (5 LTS, 7.x, 8.x).\n\n### Workarounds\nNo official workaround available.\n\n### Fix\nTo avoid this vulnerability:\n\nUpgrade to TinyMCE 8.5.1 or higher.\nUpgrade to TinyMCE 7.9.3 or higher.\nUpgrade to TinyMCE 5.11.1 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 [Tadi Kadango](https://github.com/mtrill47) ([website](https://tadiwakadango.com/))  and [Ivan Babenko](https://github.com/he1d3n) for their help identifying this vulnerability.","status":"published","published":"2026-06-05T20:27:50Z","modified":"2026-07-07T17:10:03Z","cvss":[{"version":"3.1","score":8.7,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N","level":"high"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:40:40.389795Z"}],"nvd":[{"id":"CVE-2026-47759","description":"TinyMCE is an open source rich text editor. Prior to 5.11.1, 7.9.3, and 8.5.1, there is a stored XSS vulnerability via unsanitized data-mce-* attributes (data-mce-href, data-mce-src, data-mce-style). Allows attackers to inject malicious values that override safe attributes during serialization, bypassing validation. This vulnerability is fixed in 5.11.1, 7.9.3, and 8.5.1.","status":"published","published":"2026-05-28T16:16:28.07Z","modified":"2026-10-14T20:10:00.19Z","cvss":[{"version":"3.1","score":8.7,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N","level":"high","assessor":"secondary"},{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:12:21.244426Z"}],"osv":[{"id":"CVE-2026-47759","title":"TinyMCE Cross-Site Scripting (XSS) vulnerability using through data-mce- prefixed src, href, style attributes","description":"TinyMCE is an open source rich text editor. Prior to 5.11.1, 7.9.3, and 8.5.1, there is a stored XSS vulnerability via unsanitized data-mce-* attributes (data-mce-href, data-mce-src, data-mce-style). Allows attackers to inject malicious values that override safe attributes during serialization, bypassing validation. This vulnerability is fixed in 5.11.1, 7.9.3, and 8.5.1.","status":"published","published":"2026-05-28T15:20:11.242Z","modified":"2026-10-28T02:31:10.984011685Z","cvss":[{"version":"3.1","score":8.7,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N","level":"high"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T15:45:06.231145Z"},{"id":"GHSA-q742-qvgc-gc2f","title":"TinyMCE Cross-Site Scripting (XSS) vulnerability using through data-mce- prefixed src, href, style attributes","description":"### Impact\nStored XSS vulnerability via unsanitized data-mce-* attributes (data-mce-href, data-mce-src, data-mce-style). Allows attackers to inject malicious values that override safe attributes during serialization, bypassing validation.\n\n### Patches\nPatched by stripping unsafe data-mce-* attributes during parsing. Users should upgrade to the latest patched versions (5 LTS, 7.x, 8.x).\n\n### Workarounds\nNo official workaround available.\n\n### Fix\nTo avoid this vulnerability:\n\nUpgrade to TinyMCE 8.5.1 or higher.\nUpgrade to TinyMCE 7.9.3 or higher.\nUpgrade to TinyMCE 5.11.1 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 [Tadi Kadango](https://github.com/mtrill47) ([website](https://tadiwakadango.com/))  and [Ivan Babenko](https://github.com/he1d3n) for their help identifying this vulnerability.","status":"published","published":"2026-06-05T20:27:50Z","modified":"2026-09-10T03:51:10.328388649Z","cvss":[{"version":"3.1","score":8.7,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N","level":"high"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T15:46:54.055966Z"},{"id":"UBUNTU-CVE-2026-47759","description":"TinyMCE is an open source rich text editor. Prior to 5.11.1, 7.9.3, and 8.5.1, there is a stored XSS vulnerability via unsanitized data-mce-* attributes (data-mce-href, data-mce-src, data-mce-style). Allows attackers to inject malicious values that override safe attributes during serialization, bypassing validation. This vulnerability is fixed in 5.11.1, 7.9.3, and 8.5.1.","status":"published","published":"2026-05-28T16:16:00Z","modified":"2026-06-03T11:26:15Z","cvss":[{"version":"3.1","score":8.7,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N","level":"high"},{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N","level":"medium"}],"updated_at":"2026-11-02T16:56:33.391918Z"},{"id":"CLSA-2026-1781052744","title":"TuxCare security update for tinymce (4 CVEs)","description":"TuxCare rebuilt tinymce to address 4 CVEs. Fixed in 6.8.6-tuxcare.4.","status":"published","published":"2026-08-04T14:52:36Z","modified":"2026-10-15T09:47:50.746529586Z","updated_at":"2026-11-02T15:43:45.445699Z"},{"id":"CLSA-2026-1783904630","title":"TuxCare security update for tinymce (3 CVEs)","description":"TuxCare rebuilt tinymce to address 3 CVEs. Fixed in 4.9.11-tuxcare.2.","status":"published","published":"2026-08-04T14:52:43Z","modified":"2026-10-15T09:47:36.240917863Z","updated_at":"2026-11-02T15:43:46.151924Z"},{"id":"CLSA-2026-1784077492","title":"TuxCare security update for tinymce (3 CVEs)","description":"TuxCare rebuilt tinymce to address 3 CVEs. Fixed in 5.10.9-tuxcare.2.","status":"published","published":"2026-08-04T14:52:44Z","modified":"2026-10-15T09:47:28.888373188Z","updated_at":"2026-11-02T15:43:46.151924Z"}]}}