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TI-2018-15340 Aliases CVE-2018-25114GHSA-7hjh-7hp4-wr4c

osCommerce 2.3.4.1 Installer Unauthenticated Configuration File Injection PHP Code Execution

Priority HIGH 81CWE-434Published · Updated

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-434.

Summary

A remote code execution vulnerability exists within osCommerce Online Merchant version 2.3.4.1 due to insecure default configuration and missing authentication in the installer workflow. By default, the /install/ directory remains accessible after installation. An unauthenticated attacker can invoke install_4.php, submit crafted POST data, and inject arbitrary PHP code into the configure.php file. When the application later includes this file, the injected payload is executed, resulting in full server-side compromise.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.04564 91st percentileScored 2026-11-07
Public exploit Yes 2 exploit referencesTagged by the CNA
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

VendorProductAffected versionsFixed inStatusSource
Os CommerceOnline Merchant2.3.4.1—No fix listedCNA
  • Online Merchant VendorOs Commerce Affected 2.3.4.1 Fixed in — No fix listed CNA

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2018-25114
  2. 2026-10-03 Alias added: GHSA-7hjh-7hp4-wr4c

References

Exploit 2

Other 1

  • TI-2009-04916 osCommerce <= 2.2 Admin File Manager Arbitrary PHP Code Execution CVSS 4.0CRITICAL 9.3
  • TI-2019-15550 osCommerce 2.3.4.1 SQL Injection via currency Parameter CVSS 4.0HIGH 8.8
  • TI-2019-15549 osCommerce 2.3.4.1 SQL Injection via products_id Parameter CVSS 4.0HIGH 8.8
  • TI-2019-15548 osCommerce 2.3.4.1 SQL Injection via reviews_id Parameter CVSS 4.0HIGH 8.8
  • TI-2023-06030 osCommerce POST Parameter shopping-cart sql injection CVSS 3.1CRITICAL 9.8
  • TI-2023-23428 Os Commerce 4.12.56860 - Cross Site Scripting Reflected (XSS) CVSS 3.1MEDIUM 5.4
See all 96 →

Sources

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