{"id":"CVE-2026-47759","state":"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.","publishedAt":"2026-05-28T15:20:11.242Z","updatedAt":"2026-05-30T01:58:37.777Z","severity":{"score":8.7,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N","source":"GitHub_M"},"assigner":"GitHub_M","products":["tinymce tinymce"],"affected":[{"vendor":"tinymce","product":"tinymce","versions":[{"version":"< 5.11.1","status":"affected"},{"version":">= 6.0.0, <= 6.8.6","status":"affected"},{"version":">= 7.0.0, < 7.9.3","status":"affected"},{"version":">= 8.0.0, < 8.5.1","status":"affected"}]}],"references":["https://github.com/tinymce/tinymce/security/advisories/GHSA-q742-qvgc-gc2f","https://www.tiny.cloud/docs/tinymce/7/7.9.3-release-notes/#overview","https://www.tiny.cloud/docs/tinymce/8/8.5.1-release-notes/#overview"],"weaknesses":["CWE-79"],"ingestedAt":"2026-10-29T20:12:07.131Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/47xxx/CVE-2026-47759.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-47759","state":"PUBLISHED","datePublished":"2026-05-28T15:20:11.242Z","dateUpdated":"2026-05-30T01:58:37.777Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-05-19T22:36:16.881Z"},"containers":{"cna":{"title":"TinyMCE Cross-Site Scripting (XSS) vulnerability using through data-mce- prefixed src, href, style attributes","descriptions":[{"lang":"en","value":"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."}],"affected":[{"vendor":"tinymce","product":"tinymce","versions":[{"version":"< 5.11.1","status":"affected"},{"version":">= 6.0.0, <= 6.8.6","status":"affected"},{"version":">= 7.0.0, < 7.9.3","status":"affected"},{"version":">= 8.0.0, < 8.5.1","status":"affected"}]}],"references":[{"url":"https://github.com/tinymce/tinymce/security/advisories/GHSA-q742-qvgc-gc2f","name":"https://github.com/tinymce/tinymce/security/advisories/GHSA-q742-qvgc-gc2f","tags":["x_refsource_CONFIRM"]},{"url":"https://www.tiny.cloud/docs/tinymce/7/7.9.3-release-notes/#overview","name":"https://www.tiny.cloud/docs/tinymce/7/7.9.3-release-notes/#overview","tags":["x_refsource_MISC"]},{"url":"https://www.tiny.cloud/docs/tinymce/8/8.5.1-release-notes/#overview","name":"https://www.tiny.cloud/docs/tinymce/8/8.5.1-release-notes/#overview","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":8.7,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"LOW","scope":"CHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-79","lang":"en","description":"CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-05-28T15:20:11.242Z"},"source":{"advisory":"GHSA-q742-qvgc-gc2f","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-05-30T01:58:26.866780Z","id":"CVE-2026-47759","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-05-30T01:58:37.777Z"}}]}}}