CVE-2013-10051

CRITICAL EPSS 77.0%
Published Aug 1, 202511mo ago · Modified Jun 16, 20261w ago
9.3 CVSS 4.0
Critical
Find Similar
Published Aug 1, 2025 11mo ago
Last Modified Jun 16, 2026 1w ago

Description

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.

CVSS Details

Base Score
9.3
Exploitability
—
Impact
—
Vector string
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope X

Threat Intelligence

EPSS Exploit Probability
77.0% percentile
Exploit & Patch Status
Public Exploit Known
No Patch Available

Weaknesses 1

CWE-95

Affected Products 1

VendorProductVersionRange
instantcmsinstantcms* ≤1.6.0

References 4

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

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.