CVE-2013-10051

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2013-10051
A remote PHP code execution vulnerability exists in InstantCMS version 1.6 and earlier due to unsafe use of eval() within the search view handler. Specifically, user-supplied input passed via the look parameter is concatenated into a PHP expression and executed without proper sanitation. A remote attacker can exploit this flaw by sending a crafted HTTP GET request with a base64-encoded payload in the Cmd header, resulting in arbitrary PHP code execution within the context of the web server.

9.8 /10

CVSS v3 : CRITICAL

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://packetstorm.news/files/id/122176 Third Party Advisory
https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/unix/webapp/instantcms_exec.rb Third Party Advisory
https://www.exploit-db.com/exploits/26622 Exploit
https://www.vulncheck.com/advisories/instantcms-remote-php-code-execution Third Party Advisory
https://www.exploit-db.com/exploits/26622 Exploit
Configurations

Configuration 1 (hide)

cpe:2.3:a:instantcms:instantcms:*:*:*:*:*:*:*:*
History

09 Oct 2025, 16:50

Type Values Removed Values Added
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 9.8
References () https://packetstorm.news/files/id/122176 - () https://packetstorm.news/files/id/122176 - Third Party Advisory
References () https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/unix/webapp/instantcms_exec.rb - () https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/unix/webapp/instantcms_exec.rb - Third Party Advisory
References () https://www.exploit-db.com/exploits/26622 - () https://www.exploit-db.com/exploits/26622 - Exploit
References () https://www.vulncheck.com/advisories/instantcms-remote-php-code-execution - () https://www.vulncheck.com/advisories/instantcms-remote-php-code-execution - Third Party Advisory
CPE cpe:2.3:a:instantcms:instantcms:*:*:*:*:*:*:*:*
First Time Instantcms
Instantcms instantcms

05 Aug 2025, 15:15

Type Values Removed Values Added
References () https://www.exploit-db.com/exploits/26622 - () https://www.exploit-db.com/exploits/26622 -

04 Aug 2025, 15:06

Type Values Removed Values Added
Summary
  • (es) Existe una vulnerabilidad de ejecución remota de código PHP en InstantCMS versión 1.6 y anteriores debido al uso inseguro de eval() en el controlador de la vista de búsqueda. En concreto, la entrada proporcionada por el usuario mediante el parámetro look se concatena en una expresión PHP y se ejecuta sin la debida corrección. Un atacante remoto puede explotar esta vulnerabilidad enviando una solicitud HTTP GET manipulada con un payload codificado en base64 en la cabecera Cmd, lo que provoca la ejecución de código PHP arbitrario en el contexto del servidor web.

01 Aug 2025, 21:15

Type Values Removed Values Added
New CVE
Information

Published : 2025-08-01 21:15

Updated : 2025-10-09 16:50

NVD link : CVE-2013-10051

Mitre link : CVE-2013-10051

CVE.ORG link : CVE-2013-10051

JSON object : View

Products Affected

instantcms

  • instantcms
CWE
CWE-95

Improper Neutralization of Directives in Dynamically Evaluated Code ('Eval Injection')