CVE-2018-25114

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.

PUBLISHED Reserved 2025-07-22 | Published 2025-07-23 | Updated 2026-04-07 | Assigner VulnCheck

Problem types

CWE-434 Unrestricted Upload of File with Dangerous Type

CWE-94 Improper Control of Generation of Code ('Code Injection')

Product status

Credits

Simon Scannell finder

References

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

www.oscommerce.com/ product

raw.githubusercontent.com/...e_installer_unauth_code_exec.rb exploit

www.vulncheck.com/...onfig-file-injection-php-code-execution third-party-advisory

cve.org (CVE-2018-25114)

nvd.nist.gov (CVE-2018-25114)

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