CVEs / CVE-2026-109288
CVE-2026-109288
Open WebUI before 0.11.4 contains a stored cross-site scripting vulnerability in MarkdownInlineTokens.svelte, which renders markdown link URLs into anchor hrefs without validating their scheme. Authenticated users can embed javascript: links in shared chats that, when clicked by a victim, steal the victim's JWT from local storage, including admins' tokens.
Affected products · 1
| Product | Versions affected | Fixed in |
|---|---|---|
| Open WebUI | not stated by CPE | — |
Versions as NVD's CPE configuration states them; "—" means the record gives no fixed version, not that none exists. Check the vendor's advisory in the references.
In this registry
- Open WebUI — agent dossier
References · 2
- github.com/open-webui/open-webui/security/advisories/GHSA-wf9m-46cp-c6h6
- www.vulncheck.com/advisories/open-webui-before-0.11.4-stored-xss-via-javascript-urls-in-ma
The official record's references, as NVD lists them, minus any tagged Exploit. Nothing here is an exploit or a proof of concept.
Description, scores, versions and references are the official CVE record's own, retrieved 2026-10-25 from NVD. Category, attack surface and cross-links are this registry's classification and can be wrong — use the button above. Not a severity assessment for your deployment.