CVE-2013-10051
9.8
CRITICAL · CVSS 3.1 · EPSS 2.9% (pctl 86)
In your normal cycle
Critical by CVSS (9.8), but no sign of active exploitation.
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.
Scoring
| CVSS | 9.8 (CRITICAL, v3.1) |
|---|---|
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| EPSS | 2.85% — more likely to be exploited than 86% of all CVEs |
| Weakness | CWE-95 |
| On CISA KEV | no |
| Public exploit | none known |
| Published | 2025-08-01 |
| Last modified | 2026-06-16 |
Affected (1)
| Vendor | Product |
|---|---|
| instantcms | instantcms |
References
- https://packetstorm.news/files/id/122176
- https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/unix/webapp/instantcms_exec.rb
- https://www.exploit-db.com/exploits/26622
- https://www.vulncheck.com/advisories/instantcms-remote-php-code-execution
- https://www.exploit-db.com/exploits/26622
→ the Explorer · watch your stack · NVD