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w3 vulnerabilities

Recent CVEs affecting w3 products. 1 tracked.

w3 has 1 tracked vulnerability, 0 critical. A fixed release or vendor patch exists for 1. Most recent: 2025-03-28. Highest priority: CVE-2025-1781 (score 36/100).

FAQ

How do I fix w3 vulnerabilities?

Open the CVE for your version, check the affected range, then follow the listed action: upgrade to the fixed release, or downgrade or mitigate if no fix exists yet. Commands for each OS are shown on every CVE page.

Is w3 being exploited right now?

None of the tracked w3 CVEs are on the CISA Known Exploited Vulnerabilities list at the moment. This is checked every 20 minutes.

Which w3 CVE should I patch first?

CVE-2025-1781 currently ranks highest (36/100): There is a XXE in W3CSS Validator versions before cssval-20250226 that allows an attacker to use specially-cra.

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