CVEs-PoC/2025/CVE-2025-1220.md

CVE-2025-1220

Description

In PHP versions:8.1.* before 8.1.33, 8.2.* before 8.2.29, 8.3.* before 8.3.23, 8.4.* before 8.4.10 some functions like fsockopen() lack validation that the hostname supplied does not contain null characters. This may lead to other functions like parse_url() treat the hostname in different way, thus opening way to security problems if the user code implements access checks before access using such functions.

POC

Reference

• https://github.com/php/php-src/security/advisories/GHSA-3cr5-j632-f35r

Github

• https://github.com/ARPSyndicate/cve-scores
• https://github.com/w4zu/Debian_security