RCE in Oscommerce Online Merchant
CVE-2018-25114
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.
Vulnerability class: RCE (Remote Code Execution)
Published · last modified .
EPSS exploit prediction
EPSS: 0.042 (90.5th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 91st percentile — 90.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.028 · newest: 0.042 · change: +0.013
Affected products
- Oscommerce Online Merchant — versions 2.3.4.1
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.exploit-db.com/exploits/44374 (exploit)
- www.oscommerce.com/ (product)
- raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/m… (exploit)
- www.vulncheck.com/advisories/oscommerce-installer-unauth-config-file-injection-… (third-party-advisory)
Frequently asked questions
- What is CVE-2018-25114?
- CVE-2018-25114 is a vulnerability in Oscommerce Online Merchant, classified under Code Injection. Published 2025-07-23.
- Is CVE-2018-25114 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.