PHP Improper Input Validation Vulnerability - CVE-2025-1734 - Vulnerability Database

PHP Improper Input Validation Vulnerability - CVE-2025-1734

Medium
Reference: CVE-2025-1734
Title: PHP Improper Input Validation Vulnerability
Overview:

In PHP from 8.1. before 8.1.32 from 8.2. before 8.2.28 from 8.3. before 8.3.19 from 8.4. before 8.4.5 when receiving headers from HTTP server the headers missing a colon (:) are treated as valid headers even though they are not. This may confuse applications into accepting invalid headers.