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PHP vulnerability advisories

Every CVE phpwarden knows about across the PHP engine, Composer packages and WordPress plugins, themes and core — ranked by real-world exploitation. Feed 2026.10.29.3, updated 2026-10-29. Browse by package.

19,303CVEs
8,638Composer advisories
12,328WordPress advisories
35Actively exploited (KEV) →
CVEPackageTitleSeverityCVSSEPSS
CVE-2021-21359typo3/cms, typo3/cms-coreDenial of Service in Page Error Handlingmedium5.92%
CVE-2022-23500typo3/cms, typo3/cms-coreTYPO3 CMS vulnerable to Denial of Service in Page Error Handlingmedium5.91%
GHSA-mj63-m3rc-8pprleague/commonmarkleague/commonmark: Denial of service via deeply nested XML outputmedium5.3–
Page 1 of 1 · 3 advisories
Severity and CVSS come from the upstream advisory (OSV.dev, NVD, FriendsOfPHP); KEV marks CVEs on CISA's Known Exploited Vulnerabilities list; EPSS is FIRST's 30-day exploitation probability. Rows sort exploitation-first: KEV, then EPSS, then CVSS.