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CISA Known Exploited Vulnerability

This CVE is actively exploited in the wild. CISA mandates federal agencies to patch immediately.

CVE

CVE-2012-1823

9.8

CVSScritical

Exploitable remotely over the internet · no authentication required.

Description

sapi/cgi/cgi_main.c in PHP before 5.3.12 and 5.4.x before 5.4.2, when configured as a CGI script (aka php-cgi), does not properly handle query strings that lack an = (equals sign) character, which allows remote attackers to execute arbitrary code by placing command-line options in the query string, related to lack of skipping a certain php_getopt for the 'd' case.

Attack Vector

Network

Privileges Req.

None

User Interaction

None

Updated Sep 18, 2026View on NVD →

S4E scanner

highProduct Based Web Vulnerabilities~10 seconds

CVE-2012-1823 Scanner

CVE-2012-1823 scanner - Code Injection vulnerability in PHP

Used 2.7k times · 2 assets checked · domain, ipv4, subdomain

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