{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-73426","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","state":"PUBLISHED","assignerShortName":"GitHub_M","dateReserved":"2026-08-12T14:32:11.796Z","datePublished":"2026-08-18T14:24:27.542Z","dateUpdated":"2026-08-18T17:47:02.477Z"},"containers":{"cna":{"title":"Trix: Stored XSS vulnerability through serialized attributes","problemTypes":[{"descriptions":[{"cweId":"CWE-79","lang":"en","description":"CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')","type":"CWE"}]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":4.6,"baseSeverity":"MEDIUM","confidentialityImpact":"LOW","integrityImpact":"LOW","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N","version":"3.1"}}],"references":[{"name":"https://github.com/basecamp/trix/security/advisories/GHSA-qmpg-8xg6-ph5q","tags":["x_refsource_CONFIRM"],"url":"https://github.com/basecamp/trix/security/advisories/GHSA-qmpg-8xg6-ph5q"},{"name":"https://github.com/basecamp/trix/pull/1282","tags":["x_refsource_MISC"],"url":"https://github.com/basecamp/trix/pull/1282"},{"name":"https://github.com/basecamp/trix/commit/3229c29c771ded4d247ed79b2ccd2cd05c4e74b4","tags":["x_refsource_MISC"],"url":"https://github.com/basecamp/trix/commit/3229c29c771ded4d247ed79b2ccd2cd05c4e74b4"},{"name":"https://github.com/basecamp/trix/commit/53197ab5a142e6b0b76127cb790726b274eaf1bc","tags":["x_refsource_MISC"],"url":"https://github.com/basecamp/trix/commit/53197ab5a142e6b0b76127cb790726b274eaf1bc"},{"name":"https://github.com/basecamp/trix/releases/tag/v2.1.17","tags":["x_refsource_MISC"],"url":"https://github.com/basecamp/trix/releases/tag/v2.1.17"}],"affected":[{"vendor":"basecamp","product":"trix","versions":[{"version":"< 2.1.17","status":"affected"}]}],"providerMetadata":{"orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","shortName":"GitHub_M","dateUpdated":"2026-08-18T14:24:27.542Z"},"descriptions":[{"lang":"en","value":"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."}],"source":{"advisory":"GHSA-qmpg-8xg6-ph5q","discovery":"UNKNOWN"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-08-18T17:19:19.823365Z","id":"CVE-2026-73426","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-08-18T17:47:02.477Z"}}]}}