Skip to content
OpenAdvisories
High · 7.3 CVE-2026-44721 EUVD-2026-30625GHSA-gf5m-wcrh-7928PYSEC-2026-2725

Open WebUI: Stored XSS via Model Description

Published May 15, 2026 · Updated May 19, 2026 · Assigned by GitHub_M

Description

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.9.0, a stored cross-site scripting (XSS) vulnerability that allows any authenticated user with model creation permission (workspace.models) to execute arbitrary JavaScript in the browser of any other user (including admins) who views the malicious model in the chat UI. This vulnerability is fixed in 0.9.0.

Affected products

VendorProductAffectedFixed
open-webui open-webui < 0.9.0 —

Affected packages

EcosystemPackageAffectedFixedRecord
npm open-webui < 0.9.0 0.9.0 GHSA-gf5m-wcrh-7928
PyPI open-webui < 0.9.0 0.9.0 GHSA-gf5m-wcrh-7928

References