CVE Database · CVE-2024-4577
CVSS v3.1
9.8
EPSS
99.99%
Published
Jun 9, 2024
Modified
Nov 3, 2025
CISA Known Exploited Vulnerability
Added: 2024-06-12 · Due: 2024-07-03
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Public PoC / Exploit (11)
All weaponized →Links to public security research (Exploit-DB, Nuclei, Trickest, GitHub) for defensive use only.
Description
In PHP versions 8.1.* before 8.1.29, 8.2.* before 8.2.20, 8.3.* before 8.3.8, when using Apache and PHP-CGI on Windows, if the system is set up to use certain code pages, Windows may use "Best-Fit" behavior to replace characters in command line given to Win32 API functions. PHP CGI module may misinterpret those characters as PHP options, which may allow a malicious user to pass options to PHP binary being run, and thus reveal the source code of scripts, run arbitrary PHP code on the server, etc.
CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HWeaknesses (CWE)
Affected Products (6)
References (20)