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 2026.10.29.4, updated 2026-10-29. Browse by package.

19,303CVEs
8,638Composer advisories
12,328WordPress advisories
35Actively exploited (KEV) →
CVEPackageTitleSeverityCVSSEPSS
CVE-2021-24602hm-multiple-roles (WordPress plugin)The HM Multiple Roles WordPress plugin before 1.3 does not have any access control to prevent low privilege users to set themselves as adminhigh8.82%
CVE-2026-35542roundcube/roundcubemailRoundcube: Bypass of remote image blocking via crafted BODY background attributemedium5.30%
CVE-2026-35543roundcube/roundcubemailRoundcube Webmail: Bypass of remote image blocking via SVG content (with animate attributes) in an e-mail messagemedium5.30%
CVE-2026-35545roundcube/roundcubemailRoundcube Webmail: Remote image blocking feature can be bypassed via SVG content in an e-mail messagemedium5.30%
CVE-2026-35540roundcube/roundcubemailRoundcube Webmail: Insufficient CSS sanitization in HTML e-mail messagesmedium5.40%
CVE-2026-35544roundcube/roundcubemailRoundcube Webmail: Insufficient CSS sanitization in HTML e-mail messagesmedium5.30%
Page 1 of 1 · 6 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.