CVE-2026-44568
MEDIUMOpen WebUI: Stored XSS in Pending User Overlay via Incorrect DOMPurify Application Order
Title source: cnaDescription
Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.9.0, the AccountPending.svelte component renders the admin-configured "Pending User Overlay Content" using marked.parse() inside {@html} with an incorrect DOMPurify application order. An admin can inject arbitrary JavaScript into the Pending User Overlay Content that executes in the browser context of any pending user who views the overlay page. 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-fq3v-xjjx-95rc
Scores
CVSS v3
4.8
EPSS
0.0003
EPSS Percentile
9.9%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N
CISA SSVC
Vulnrichment
Exploitation
poc
Automatable
no
Technical Impact
partial
Details
CWE
CWE-79
Status
published
Products (3)
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