How we count
Every figure on this page is a direct count of entries in CISA’s Known Exploited Vulnerabilities catalog attributed by CISA to PHP (KEV field vendorProject), refreshed daily. “Ransomware-linked” counts entries CISA marks as known to be used in ransomware campaigns; the remainder are “unknown” to CISA, not confirmed ransomware-free. A KEV listing means the vulnerability has been observed exploited in the wild. Snapshot as of 2026-09-02.
Exploited PHP vulnerabilities (CISA KEV)
| CVE | Product | Vulnerability | Added | |
|---|---|---|---|---|
| CVE-2016-10033 | PHPMailer | PHPMailer Command Injection Vulnerability | 2025-07-07 | |
| CVE-2024-4577 | PHP | PHP-CGI OS Command Injection Vulnerability | 2024-06-12 | ransomware |
| CVE-2019-11043 | FastCGI Process Manager (FPM) | PHP FastCGI Process Manager (FPM) Buffer Overflow Vulnerability | 2022-03-25 | ransomware |
| CVE-2012-1823 | PHP | PHP-CGI Query String Parameter Vulnerability | 2022-03-25 |
← All vendors by exploited-vulnerability count
🤖 Generated by defend.network from the CISA KEV catalog. Counts are deterministic aggregates of official CISA data; verify individual advisories at the linked sources.