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GHSA-9F4F-JV96-8766 Open WebUI vulnerable to stored XSS via unescaped markdown token in MarkdownTokens.svelte leading to full account takeover and RCE via functions

🗓️ 07 Jul 2026 16:50:59Reported by GoogleType 
osv
 osv
🔗 osv.dev👁 6 Views

Stored cross site scripting in chat MarkdownTokens.svelte enables code execution in transcripts, risking account takeover and admin remote execution.

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07 Jul 2026 17:00Current
6.3Medium risk
Vulners AI Score6.3
CVSS 48.7
EPSS0.00449
6