{"id":"CVE-2026-73426","title":"Trix is a what-you-see-is-what-you-get rich text editor for everyday writing","summary":"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 …","severity":"medium","cvss":4.6,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N","cwe":["CWE-79"],"published":"2026-08-18","updated":"2026-09-18","sourceUpdated":"2026-09-18T20:09:01.757","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-73426","references":[{"url":"https://github.com/basecamp/trix/commit/3229c29c771ded4d247ed79b2ccd2cd05c4e74b4","label":"security-advisories@github.com"},{"url":"https://github.com/basecamp/trix/commit/53197ab5a142e6b0b76127cb790726b274eaf1bc","label":"security-advisories@github.com"},{"url":"https://github.com/basecamp/trix/pull/1282","label":"security-advisories@github.com"},{"url":"https://github.com/basecamp/trix/releases/tag/v2.1.17","label":"security-advisories@github.com"},{"url":"https://github.com/basecamp/trix/security/advisories/GHSA-qmpg-8xg6-ph5q","label":"security-advisories@github.com"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-73426.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-73426"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-73426"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-73426"}],"tags":["nvd","csaf","vex","red-hat"],"epss":0.0032,"epssPercentile":0.22299,"ingestedAt":"2026-09-18T20:51:25.630Z","vendor":"Red Hat","slug":"CVE-2026-73426","body":"## Overview\n\nTrix 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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n## Vendor advisories\n\n- **Red Hat VEX** · updated 2026-09-24 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-73426.json)","depth":"sunlit","depthScore":25,"depthScoreParts":{"impact":25.3,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}