CVE-2026-109291
HIGH
NVD
CVSS Score
7.3
Severity
HIGH
Published
Oct 12, 2026
Vendor
unknown
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.