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Bugsink is vulnerable to Stored XSS via Pygments fallback in stacktrace rendering

🗓️ 25 Feb 2026 16:06:00Reported by GitHub Advisory DatabaseType 
github
 github
🔗 github.com👁 2 Views

Bugsink allows stored XSS via Pygments fallback in stacktrace rendering; unauthenticated events can inject JS executed when an admin views the stacktrace.

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25 Feb 2026 16:06Current
5.8Medium risk
Vulners AI Score5.8
CVSS 3.16.1 - 9.3
EPSS0.00099
SSVC
2