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BIT-DISCOURSE-2025-67723 Discourse vulnerable to stored Cross-site Scripting via Katex in discourse-math plugin

🗓️ 02 Feb 2026 08:42:10Reported by GoogleType 
osv
 osv
🔗 osv.dev👁 1 Views

Stored XSS via KaTeX in Discourse Math plugin; fixed in specific releases; workaround disable plugin or use Mathjax.

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10 Feb 2026 09:36Current
5.3Medium risk
Vulners AI Score5.3
CVSS 3.14.6 - 5.4
EPSS0.00021
SSVC
1