{"id":"CVE-2026-109291","published":"2026-10-12T17:17:22.353","lastModified":"2026-10-15T16:25:41.890","description":"Open WebUI from 0.6.33 before 0.11.4 contains a cross-site scripting vulnerability that allows authenticated users to execute script in victims' sessions by storing javascript: URLs in citation embed_url fields. Attackers can share a crafted chat whose citation, when clicked, is passed to window.open, letting them steal localStorage.token and act as the victim.","cvssScore":7.3,"cvssSeverity":"HIGH","cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N","cwes":["CWE-79"],"vendors":[],"products":[],"references":[{"url":"https://github.com/open-webui/open-webui/security/advisories/GHSA-qpqv-xwg8-cqpj","tags":[]},{"url":"https://www.vulncheck.com/advisories/open-webui-0.6.33-before-0.11.4-stored-xss-via-citation-embed-url","tags":[]}],"exploitRefs":[{"url":"https://github.com/open-webui/open-webui/security/advisories/GHSA-qpqv-xwg8-cqpj","tags":[]}],"hasPoc":true,"ai":null}