Offensive Testing
Penetration TestingVulnerability AssessmentsRed Team Engagements
Advisory & Research
AI Launch Risk ReviewSecurity Architecture ReviewSecurity ResearchSecurity Awareness Training
Software
Breachwright
Community
AI Security DatabaseAdvent Prompt PwnField Manual
ResearchAboutContact
Get in Touch
← Back to the database
high · 8.5Automated intelligenceCVE-2026-109291

CVE-2026-109291: Open WebUI

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.

Public sources

cve recordvendor advisoryother