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CVE-2018-25114

Published: Jul 23, 2025

Modified: Apr 7, 2026

PUBLISHED

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.

Vendor	Product	Versions
osCommerce	Online Merchant	affected `2.3.4.1`

Weaknesses (CWE)

References

https://www.exploit-db.com/exploits/44374

exploit

https://www.oscommerce.com/

product

https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/multi/http/oscommerce_installer_unauth_code_exec.rb

exploit

https://www.vulncheck.com/advisories/oscommerce-installer-unauth-config-file-injection-php-code-execution

third-party-advisory

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