medium6.4
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 href…
Impact
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
| Product | Affected versions |
|---|---|
| Open WebUI | before 0.11.4 |
Versions were read from the advisory text. No structured product data has been published for this record yet.