CVE-2013-10051

high-risk
Published 2025-08-01

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.

Do I need to act?

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75.8% chance of exploitation in next 30 days
EPSS score — higher than 24% of all CVEs
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
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Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
9
CVSS 9.8/10 Critical
NETWORK / LOW complexity

Affected Products (1)

Affected Vendors

Instantcms

References (5)

Third Party Advisory https://packetstorm.news/files/id/122176
Third Party Advisory https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exp...
Exploit https://www.exploit-db.com/exploits/26622
Third Party Advisory https://www.vulncheck.com/advisories/instantcms-remote-php-code-execution
Exploit https://www.exploit-db.com/exploits/26622
57
/ 100
high-risk
Severity 32/34 · Critical
Exploitability 20/34 · Moderate
Exposure 5/34 · Minimal