{"id":"GHSA-v2wj-7wpq-c8vv","revision":"e9bb4bbd12ca4064b29e5b628e90f2c3","records":[{"revision":"e9bb4bbd12ca4064b29e5b628e90f2c3","observedAt":"2026-10-24T13:17:17.793+00:00","statement":{"source":"osv","id":"GHSA-v2wj-7wpq-c8vv","aliases":["CVE-2026-0540"],"title":"DOMPurify contains a Cross-site Scripting vulnerability","description":"DOMPurify 3.1.3 through 3.3.1 and 2.5.3 through 2.5.8, fixed in 2.5.9 and 3.3.2, contain a cross-site scripting vulnerability that allows attackers to bypass attribute sanitization by exploiting five missing rawtext elements (noscript, xmp, noembed, noframes, iframe) in the `SAFE_FOR_XML` regex. Attackers can include payloads like `</noscript><img src=x onerror=alert(1)>` in attribute values to execute JavaScript when sanitized output is placed inside these unprotected rawtext contexts.","state":0,"publishedAt":"2026-03-03T18:31:33+00:00","modifiedAt":"2026-09-10T03:50:41.0556162+00:00","affected":[{"ecosystem":"npm","name":"dompurify","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"3.1.3"},{"kind":"fixed","version":"3.3.2"}]}],"versions":[],"rawVersionEvidence":null},{"ecosystem":"npm","name":"dompurify","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"2.5.3"},{"kind":"fixed","version":"2.5.9"}]}],"versions":[],"rawVersionEvidence":null}],"metrics":[{"system":"CVSS_V3","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","score":null,"severity":null},{"system":"CVSS_V4","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N","score":null,"severity":null},{"system":"Publisher rating","vector":null,"score":null,"severity":"MODERATE"}],"references":["https://nvd.nist.gov/vuln/detail/CVE-2026-0540","https://github.com/cure53/DOMPurify/commit/302b51de22535cc90235472c52e3401bedd46f80","https://github.com/cure53/DOMPurify/commit/fca0a938b4261ddc9c0293a289935a9029c049f5","https://fluidattacks.com/advisories/daft","https://github.com/cure53/DOMPurify","https://github.com/cure53/DOMPurify/releases/tag/3.3.2","https://www.vulncheck.com/advisories/dompurify-xss-via-missing-rawtext-elements-in-safe-for-xml"],"sourceUrl":"https://github.com/advisories/GHSA-v2wj-7wpq-c8vv","license":"GitHub Advisory Database · CC-BY-4.0","key":"osv:GHSA-v2wj-7wpq-c8vv","identifiers":["GHSA-v2wj-7wpq-c8vv","CVE-2026-0540"]},"retained":false,"historicalAffected":[]}],"coverage":[]}