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.
References (1)
Core 1
Core References
X_Refsource_Confirm x_refsource_confirm
https://github.com/open-webui/open-webui/security/advisories/GHSA-gf5m-wcrh-7928
Scores
CVSS v3
7.3
EPSS
0.0004
EPSS Percentile
10.9%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N
CISA SSVC
Vulnrichment
Exploitation
poc
Automatable
no
Technical Impact
total
Details
CWE
CWE-79
Status
published
Products (4)
npm/open-webui
0 - 0.9.0npm
open-webui/open-webui
< 0.9.0
openwebui/open_webui
< 0.9.0
pypi/open-webui
0 - 0.9.0PyPI
Published
May 15, 2026
Tracked Since
May 16, 2026