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Open WebUI: Stored XSS via unescaped KaTeX render-error fallback in rendered messages

🗓️ 10 Aug 2026 10:43:50Reported by Python Packaging AdvisoryType 
pypa
 pypa
🔗 github.com👁 20 Views

Stored XSS in messages via unescaped KaTeX render-error fallback allows script execution in viewer browser.

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10 Aug 2026 11:01Current
5.4Medium risk
Vulners AI Score5.4
CVSS 3.18.7
EPSS0.00261
SSVC
20