{"id":"CVE-2026-73426","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-73426","generatedAt":"2026-10-28T07:26:00.501Z","title":"Prior to 2.1.17, Trix is vulnerable to cross-site scripting when a data-trix-serialized-attributes attribute bypasses the DOMPurify sanitizer.","description":"Trix is a what-you-see-is-what-you-get rich text editor for everyday writing. Prior to 2.1.17, Trix is vulnerable to cross-site scripting when a data-trix-serialized-attributes attribute bypasses the DOMPurify sanitizer. An attacker can craft HTML containing a data-trix-serialized-attributes attribute with a malicious payload that, when rendered, executes arbitrary JavaScript in the user's session and may perform unauthorized actions or disclose sensitive information. This issue is fixed in version 2.1.17.","published":"2026-08-18T15:17:08.000Z","lastModified":"2026-10-22T22:10:00.000Z","status":"Deferred","sourceIdentifier":"security-advisories@github.com","cvss":{"version":"3.1","score":4.6,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N"},"cwe":["CWE-79"],"affected":[],"epss":{"score":0.0032,"percentile":0.24876,"date":"2026-10-27","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"low","text":"Lower severity and a low EPSS score (0.32%). Track it; it rarely justifies an emergency change on its own."},"changes":[],"references":[{"url":"https://github.com/basecamp/trix/commit/3229c29c771ded4d247ed79b2ccd2cd05c4e74b4","source":"security-advisories@github.com"},{"url":"https://github.com/basecamp/trix/commit/53197ab5a142e6b0b76127cb790726b274eaf1bc","source":"security-advisories@github.com"},{"url":"https://github.com/basecamp/trix/pull/1282","source":"security-advisories@github.com"},{"url":"https://github.com/basecamp/trix/releases/tag/v2.1.17","source":"security-advisories@github.com"},{"url":"https://github.com/basecamp/trix/security/advisories/GHSA-qmpg-8xg6-ph5q","source":"security-advisories@github.com"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-73426","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}