TI-2013-06192 Aliases CVE-2013-10051 GHSA-vv4j-q4m2-9gr7

InstantCMS <= 1.6 Remote PHP Code Execution

HIGH 81CWE-95Published 2025-08-01 · Updated 2026-05-15

Key facts

Attack vector: Network
Privileges required: None
User interaction: None
Attack complexity: Low
Attack requirements: None
Impact type: Code execution
Confidentiality · integrity · availability: High · High · High
Fix status: No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-95.

Summary

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV

EPSS 0.03668 89th percentileScored 2026-11-07

Public exploit Yes 3 exploit referencesTagged by the CNA and NVD

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: Poc
Automatable: Yes
Technical impact: Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
InstantCMS	InstantCMS	up to 1.6	—	No fix listed	CNA

InstantCMS VendorInstantCMS Affected up to 1.6 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:instantcms:instantcms::::::::	up to 1.6.0	Vulnerable	InstantCMS

cpe:2.3:a:instantcms:instantcms:*:*:*:*:*:*:*:* Versions up to 1.6.0 Vulnerable ·InstantCMS

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2013-10051
2026-10-03 Alias added: GHSA-vv4j-q4m2-9gr7

References

Exploit 3

TI-2023-03877 SQL Injection in instantsoft/icms2 CVSS 3.1CRITICAL 9.1
TI-2024-20589 SQL injection in index_chart_data action CVSS 3.1HIGH 7.2
TI-2025-36697 InstantCMS vulnerable to Server-Side Request Forgery via package installer CVSS 3.1HIGH 7.2
TI-2023-04291 Cross-site Scripting (XSS) - Reflected in instantsoft/icms2 CVSS 3.1MEDIUM 6.1
TI-2024-33783 InstantCMS has a Cross Site Scripting Vulnerability CVSS 3.1MEDIUM 5.4
TI-2024-20590 InstantCMS Open Redirect vulnerability CVSS 3.1MEDIUM 5.4

See all 20 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences