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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-2026-71488league/commonmarkleague/commonmark: Quadratic-time denial of service when parsing crafted Markdownhigh7.51%
CVE-2026-86429league/commonmarkleague/commonmark: Denial of service in the SmartPunct and Attributes extensionshigh7.51%
CVE-2026-86428league/commonmarkleague/commonmark: Denial of service via distinctly-named attributes in the Attributes extensionhigh7.50%
CVE-2026-86430league/commonmarkleague/commonmark: Denial of service via crafted code fences, reference links, and emphasis delimitershigh7.50%
Page 1 of 1 · 4 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.