{"id":"CVE-2026-116803","published":"2026-10-27T00:17:11.913","lastModified":"2026-10-27T00:17:11.913","description":"DOMPurify before 3.4.17 contains a cross-site scripting vulnerability that allows attackers to keep event handlers armed when an IN_PLACE hook removes a parent or sibling node. Attacker markup in detached subtrees is never walked or neutralized, so handlers like img onerror fire after sanitize() returns, causing DOM XSS.","cvssScore":6.1,"cvssSeverity":"MEDIUM","cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","cwes":["CWE-79"],"vendors":[],"products":[],"references":[{"url":"https://github.com/cure53/DOMPurify/security/advisories/GHSA-mrv2-3pqr-j5jr","tags":[]},{"url":"https://www.vulncheck.com/advisories/dompurify-before-3.4.17-dom-xss-via-in-place-hook-detached-subtrees","tags":[]}],"exploitRefs":[{"url":"https://github.com/cure53/DOMPurify/security/advisories/GHSA-mrv2-3pqr-j5jr","tags":[]}],"hasPoc":true,"ai":null}