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GHSA-RQV2-M695-F8J4 MCP Registry vulnerable to stored XSS in catalogue UI via attribute-quote breakout in publisher-controlled `websiteUrl`

🗓️ 08 May 2026 17:18:32Reported by GoogleType 
osv
 osv
🔗 osv.dev

Stored XSS in catalogue UI via websiteUrl in published server.json; quotes break href.

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16 May 2026 00:10Current
5.7Medium risk
Vulners AI Score5.7
CVSS 45.1
CVSS 3.15.4
EPSS0.00035
0