CVE-2013-10051

Critical

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.

SeverityCritical
CVSS9.8
Exploit probability—
ProductInstantcms
PublishedAug 1, 2025
First seenAug 1, 2025
Weakness typeCWE-95CWE-95

How to fix

Sources list no fixed version or patch link for this vulnerability.

Affected products

ProductAffected versionsFixed in
instantcms instantcmsv ≤ 1.6.0—

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