CVE-2018-25114
CVE-2018-25114 is a critical-severity vulnerability with a CVSS 4.0 base score of 9.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-94.
Key facts
- Severity: Critical (CVSS 4.0 base score 9.3)
- EPSS exploit prediction: 3% (85th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2018-21601
- Weakness: CWE-94
- Published:
- Last modified:
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.
Frequently asked questions
- What is 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.
- How severe is CVE-2018-25114?
- CVE-2018-25114 has a CVSS 4.0 base score of 9.3, rated critical severity.
- Is CVE-2018-25114 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (85th percentile), an estimate of the probability of exploitation in the next 30 days.
- How do I fix CVE-2018-25114?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
- Does CVE-2018-25114 have an EU (EUVD) identifier?
- Yes. CVE-2018-25114 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2018-21601.
- When was CVE-2018-25114 published?
- CVE-2018-25114 was published on 2025-07-23 and last updated on 2026-06-17.
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
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