CVE-2018-25114: osCommerce 2.3.4.1 Installer Unauthenticated Configuration File Injection PHP Code Execution
- Is it exploited?
Reported, not confirmed by CISA. VulnCheck KEV lists it as exploited in the wild. CISA has not added it to its Known Exploited Vulnerabilities catalog as of .
VulnCheck KEV lists it since . It cites 163 public reports, the first from .
- How likely is exploitation in the next 30 days?
- 4.6%
Up from 4.5% on .
EPSS score, percentile 91.6 of all scored records. A probability estimated by FIRST, not a report of exploitation.
CISA's SSVC assessment in the CVE record lists exploitation as poc.
- How severe?
- 9.3 Critical
CVSS v4.0 base score, given by the CNA
- What should I do?
CISA has set no required action, because the vulnerability is not in KEV.
The CVE record links no vendor advisory, patch or mitigation.
- Which versions are affected?
Affected
- 2.3.4.1
Source: CISA KEV 2026.10.29, as of ; VulnCheck KEV, as of ; FIRST EPSS, as of ; CVE List, as of . About the data.
Description
osCommerce 2.3.4.1 Installer Unauthenticated Configuration File Injection PHP Code Execution
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.
Source: CVE List, as of . About the data.
What to do
Advisories and patches
The CVE record links no vendor advisory, patch or mitigation.
This summary is based on the CVE record as of . Check the vendor's advisory before you act: affected versions and fixes can change.
Affected products and versions
Versions by product, as listed in the CVE record (1 product)
| Status | Versions |
|---|---|
| Affected | 2.3.4.1 |
Versions not listed are: unknown.
Source: CVE List, as of . About the data.
Weakness
CWE-434, CWE-94, 1 CAPEC
- CWE-434: Unrestricted Upload of File with Dangerous Type
- CWE-94: Improper Control of Generation of Code ('Code Injection')
Attack patterns (CAPEC)
- CAPEC-242: Code Injection
CWE and CAPEC are maintained by MITRE; the entries are those named in the CVE record.
Timeline
| Date | Event |
|---|---|
| CVE record published | |
| CVE record last updated |