CVE-2018-25114
osCommerce 2.3.4.1 Installer Unauthenticated Configuration File Injection PHP Code Execution
- State
- Published
- Severity
- 9.3 Critical
- Published
- Jul 23, 2025
- Updated
- Apr 7, 2026
- Reserved
- Jul 22, 2025
Description
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 9.3 Critical | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N | VulnCheck |
Weaknesses
Affected Products
| Product | Versions |
|---|---|
Online MerchantosCommerce |
|
References
- https://www.exploit-db.com/exploits/44374exploit
- https://www.oscommerce.com/product
- https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/multi/http/oscommerce_installer_unauth_code_exec.rbexploit
- https://www.vulncheck.com/advisories/oscommerce-installer-unauth-config-file-injection-php-code-executionthird-party-advisory
Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.