VULNERABILITY INTELLIGENCE

CVE-2012-1823

CVSS score9.8 CRITICAL
EPSS probability100.00%
CISA KEVKnown exploited vulnerability
Published2012-05-11
Last modified2026-06-16
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Known Exploited Vulnerability

PHP-CGI Query String Parameter Vulnerability

Vendor / product: PHP / PHP

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.

Weakness classification

  • CWE-77: Improper Neutralization of Special Elements used in a Command ('Command Injection')

Primary references