CVE-2026-109288 — Open WebUI before 0.11.4 Stored XSS via javascript: URLs in Markdown Links
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 validati…
Published: 2026-10-12 · CVSS: 7.2 · CVSS 4.0
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.
Source: CVE Program · Revision 2bc2f154a9513fd639cf69e09a5cddfaedf57bdc