CVSS 4.0
9.3 criticalCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:NCVE-2018-25114
Critical (9.3). EPSS 4.6% chance of exploitation in the next 30 days.
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.
Severity
- EPSS
- 4.6% chance of exploitation in the next 30 days; higher than 91% of CVEs (scores of 2026-10-31)
- CWEs
- CWE-94, CWE-434
- Published
- Modified
- Record from
- the NVD, synced
References
- https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/multi/http/oscommerce_installer_unauth_code_exec.rb
- https://www.exploit-db.com/exploits/44374
- https://www.oscommerce.com/
- https://www.vulncheck.com/advisories/oscommerce-installer-unauth-config-file-injection-php-code-execution