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 2026.10.29.1, updated 2026-10-28. Browse by package.

19,303CVEs
8,638Composer advisories
12,328WordPress advisories
35Actively exploited (KEV) →
CVEPackageTitleSeverityCVSSEPSS
CVE-2019-18854safe-svg (WordPress plugin)A Denial Of Service vulnerability exists in the safe-svg (aka Safe SVG) plugin through 1.9.4 for WordPress, related to unlimited recursion fhigh7.53%
CVE-2021-21359typo3/cms, typo3/cms-coreDenial of Service in Page Error Handlingmedium5.92%
CVE-2023-50251phenx/php-svg-libDenial of service caused by infinite recursion when parsing SVG documentmedium5.31%
CVE-2023-34620laktak/hjsonhjson stack exhaustion vulnerabilityhigh7.51%
CVE-2024-29904codeigniter4/frameworkCodeIgniter4 DoS Vulnerabilityhigh7.51%
CVE-2021-36395moodle/moodleMoodle vulnerable to Uncontrolled Resource Consumptionhigh7.51%
CVE-2022-23500typo3/cms, typo3/cms-coreTYPO3 CMS vulnerable to Denial of Service in Page Error Handlingmedium5.91%
CVE-2026-45133symfony/symfony, symfony/yamlSymfony hardened the parser when handling untrusted inputlow0.01%
CVE-2026-107376webonyx/graphql-phpwebonyx/graphql-php has unbounded recursion in parser that causes stack overflow on crafted nested inputhigh8.20%
CVE-2026-109413symfony/symfony, symfony/yamlSymfony: Unbounded Recursion in the YAML Inline Lexer Lets a Single Document Crash the Processhigh0.00%
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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.