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CVE-2025-1781

There is a XXE in W3CSS Validator versions before cssval-20250226 that allows an attacker to use specially-crafted XML objects to coerce server-side request forgery (SSRF).  This could be exploited to read arbitrary local files if an attacker has access to exception messages.

CVSS 4.0 · 8.4 High EPSS < 1% KEV · Not listed
Vendors
W3 W3c
Products
Css Validator Css Validator