CVE-2013-10051 | THREATINT

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.

Reserved 2025-08-01 | Published 2025-08-01 | Updated 2025-08-01 | Assigner VulnCheck

CRITICAL: 9.3CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Problem types

CWE-95 Improper Neutralization of Directives in Dynamically Evaluated Code ('Eval Injection')

Product status

Default status

unknown

affected

Credits

Ricardo Jorge Borges de Almeida finder

References

raw.githubusercontent.com/.../unix/webapp/instantcms_exec.rb exploit

www.exploit-db.com/exploits/26622 exploit

packetstorm.news/files/id/122176 exploit

www.vulncheck.com/...es/instantcms-remote-php-code-execution third-party-advisory

cve.org (CVE-2013-10051)

nvd.nist.gov (CVE-2013-10051)

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