{"id":"CVE-2026-47760","aliases":["CLSA-2026-1781052744","EUVD-2026-32920","GHSA-mh5m-5hw4-5c69","UBUNTU-CVE-2026-47760"],"status":"published","title":"TinyMCE Cross-Site Scripting (XSS) vulnerability using sanitization bypass through nested SVGs","description":"TinyMCE is an open source rich text editor. From 6.8.0 to before 7.1.0, TinyMCE contains an XSS vulnerability caused by improper SVG namespace scope handling in the sanitizer. A crafted payload using nested elements can bypass attribute sanitization and execute arbitrary JavaScript. This vulnerability is fixed in 7.1.0.","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":"2026-11-09","score":0.00191,"percentile":0.08763,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-79"],"published":"2026-05-28T15:18:22Z","modified":"2026-10-28T02:30:43Z","fixes":[{"ecosystem":"npm","package":"tinymce","fixed_in":["7.1.0"],"sources":["ghsa","osv"]},{"ecosystem":"NuGet","package":"TinyMCE","fixed_in":["7.1.0"],"sources":["ghsa","osv"]},{"ecosystem":"Packagist","package":"tinymce/tinymce","fixed_in":["7.1.0"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"npm","package":"tinymce","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"6.8.0"},{"fixed":"7.1.0"}]}]},{"source":"ghsa","ecosystem":"NuGet","package":"TinyMCE","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"6.8.0"},{"fixed":"7.1.0"}]}]},{"source":"ghsa","ecosystem":"Packagist","package":"tinymce/tinymce","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"6.8.0"},{"fixed":"7.1.0"}]}]},{"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":"npm","package":"tinymce","ranges":[{"type":"SEMVER","events":[{"introduced":"6.8.0"},{"fixed":"7.1.0"}]}]},{"source":"osv","ecosystem":"NuGet","package":"TinyMCE","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"6.8.0"},{"fixed":"7.1.0"}]}],"versions":["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"]},{"source":"osv","ecosystem":"Packagist","package":"tinymce/tinymce","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"6.8.0"},{"fixed":"7.1.0"}]}],"versions":["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"]},{"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-mh5m-5hw4-5c69","tags":["x_refsource_CONFIRM","Vendor Advisory","advisory","web","report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-47760","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-mh5m-5hw4-5c69"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/47xxx/CVE-2026-47760.json","tags":["advisory"]},{"url":"https://github.com/tinymce/tinymce","tags":["package"]},{"url":"https://ubuntu.com/security/CVE-2026-47760","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-47760","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2026-47760","title":"TinyMCE Cross-Site Scripting (XSS) vulnerability using sanitization bypass through nested SVGs","description":"TinyMCE is an open source rich text editor. From 6.8.0 to before 7.1.0, TinyMCE contains an XSS vulnerability caused by improper SVG namespace scope handling in the sanitizer. A crafted payload using nested elements can bypass attribute sanitization and execute arbitrary JavaScript. This vulnerability is fixed in 7.1.0.","status":"published","published":"2026-05-28T15:18:22.509Z","modified":"2026-06-02T15:58:47.216Z","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":"2026-11-02T13:36:51.6229Z"}],"euvd":[{"id":"EUVD-2026-32920","description":"TinyMCE is an open source rich text editor. From 6.8.0 to before 7.1.0, TinyMCE contains an XSS vulnerability caused by improper SVG namespace scope handling in the sanitizer. A crafted payload using nested elements can bypass attribute sanitization and execute arbitrary JavaScript. This vulnerability is fixed in 7.1.0.","status":"published","published":"2026-05-28T15:18:22Z","modified":"2026-06-02T15:58:47Z","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":"2026-11-02T18:20:56.053165Z"}],"ghsa":[{"id":"GHSA-mh5m-5hw4-5c69","title":"TinyMCE Cross-Site Scripting (XSS) vulnerability using sanitization bypass through nested SVGs","description":"### Impact\nTinyMCE 6.8.x contains an XSS vulnerability caused by improper SVG namespace scope handling in the sanitizer. A crafted payload using nested \u003csvg\u003e elements can bypass attribute sanitization and execute arbitrary JavaScript.\n\n### Patches\nThis issue affects TinyMCE 6.8.x-7.0.x. The vulnerability is fixed in TinyMCE 7.1.0 and later.\n\n### Workarounds\nNo official workaround available.\n\n### Acknowledgements\nTiny thanks [maple3142](https://github.com/maple3142) (\u003chttps://maple3142.net\u003e) of DEVCORE for their help identifying this vulnerability.\n\n### References\nFix introduced in TinyMCE 7.1.0 though a rewrite of code causing the vulnerability.","status":"published","published":"2026-06-05T20:09:38Z","modified":"2026-06-05T20:09:39Z","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":"2026-11-02T14:40:17.745826Z"}],"nvd":[{"id":"CVE-2026-47760","description":"TinyMCE is an open source rich text editor. From 6.8.0 to before 7.1.0, TinyMCE contains an XSS vulnerability caused by improper SVG namespace scope handling in the sanitizer. A crafted payload using nested elements can bypass attribute sanitization and execute arbitrary JavaScript. This vulnerability is fixed in 7.1.0.","status":"published","published":"2026-05-28T16:16:28.21Z","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-2026-47760","title":"TinyMCE Cross-Site Scripting (XSS) vulnerability using sanitization bypass through nested SVGs","description":"TinyMCE is an open source rich text editor. From 6.8.0 to before 7.1.0, TinyMCE contains an XSS vulnerability caused by improper SVG namespace scope handling in the sanitizer. A crafted payload using nested elements can bypass attribute sanitization and execute arbitrary JavaScript. This vulnerability is fixed in 7.1.0.","status":"published","published":"2026-05-28T15:18:22.509Z","modified":"2026-10-28T02:30:43.179457017Z","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-mh5m-5hw4-5c69","title":"TinyMCE Cross-Site Scripting (XSS) vulnerability using sanitization bypass through nested SVGs","description":"### Impact\nTinyMCE 6.8.x contains an XSS vulnerability caused by improper SVG namespace scope handling in the sanitizer. A crafted payload using nested \u003csvg\u003e elements can bypass attribute sanitization and execute arbitrary JavaScript.\n\n### Patches\nThis issue affects TinyMCE 6.8.x-7.0.x. The vulnerability is fixed in TinyMCE 7.1.0 and later.\n\n### Workarounds\nNo official workaround available.\n\n### Acknowledgements\nTiny thanks [maple3142](https://github.com/maple3142) (\u003chttps://maple3142.net\u003e) of DEVCORE for their help identifying this vulnerability.\n\n### References\nFix introduced in TinyMCE 7.1.0 though a rewrite of code causing the vulnerability.","status":"published","published":"2026-06-05T20:09:38Z","modified":"2026-09-10T03:51:09.36697737Z","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":"2026-11-02T15:46:51.811331Z"},{"id":"UBUNTU-CVE-2026-47760","description":"TinyMCE is an open source rich text editor. From 6.8.0 to before 7.1.0, TinyMCE contains an XSS vulnerability caused by improper SVG namespace scope handling in the sanitizer. A crafted payload using nested elements can bypass attribute sanitization and execute arbitrary JavaScript. This vulnerability is fixed in 7.1.0.","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"}]}}