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CVE-2026-41305 PostCSS has XSS via Unescaped </style> in its CSS Stringify Output

🗓️ 24 Apr 2026 02:27:47Reported by GoogleType 
osv
 osv
🔗 osv.dev👁 10 Views

PostCSS before 8.5.10 did not escape </style> in stringified CSS, enabling XSS; fixed in 8.5.10.

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07 Aug 2026 11:50Current
6Medium risk
Vulners AI Score6
CVSS 3.16.1
10