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CVE Record

CVE-2018-25114: 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.

CriticalCVSS 9.3Not KEV-listedUpdated
Glexia's TakeAutomated analysiscritical

Security readout for executives and security teams

Plain-English summary

CVE-2018-25114 lets an unauthenticated internet user turn an exposed osCommerce 2.3.4.1 installer into server-side code execution. If the installer directory remains reachable after setup, the attacker can alter application configuration that later runs as PHP. This is a full compromise risk for affected storefront servers.

Executive priority

Treat confirmed exposure as urgent because compromise can lead to server takeover and ecommerce data impact. Prioritize public storefronts running osCommerce 2.3.4.1 with reachable installer files.

Technical view

osCommerce Online Merchant 2.3.4.1 leaves the installer workflow unauthenticated when /install/ remains accessible. The vulnerable install_4.php flow accepts crafted configuration input and can write PHP into configure.php. Because the application later includes that file, injected code executes in the web server context.

Likely exposure

Exposure is most likely on legacy osCommerce 2.3.4.1 deployments where the installation directory is still publicly reachable. Public-facing ecommerce sites are the primary concern. The bundle does not establish exposure for other osCommerce versions.

Exploitation context

Public exploit references exist, including Exploit-DB and a Metasploit module. The source bundle does not show CISA KEV listing or confirmed active exploitation, so active exploitation should not be asserted from these sources alone.

Researcher notes

The evidence supports unauthenticated configuration-file PHP injection in osCommerce 2.3.4.1. Remediation specifics beyond removing or restricting the installer are not fully detailed in the provided sources; verify vendor-supported upgrade guidance before prescribing a version fix.

Mitigation direction

  • Remove or disable the osCommerce /install/ directory after installation.
  • Restrict any remaining installer paths from public internet access.
  • Review configure.php for unauthorized PHP or unexpected configuration changes.
  • Check osCommerce guidance for supported versions, patches, or upgrade direction.
  • Restore affected files from trusted backups if tampering is found.

Validation and detection

  • Inventory internet-facing osCommerce deployments and confirm exact version 2.3.4.1 status.
  • Verify installer paths are not reachable without authentication.
  • Inspect configure.php files for unexpected executable content or recent modification times.
  • Review web logs for unauthenticated installer access attempts.
  • Confirm file permissions prevent the web process from changing configuration unnecessarily.
Prepared
Confidence
high
Sources
6

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.

cwe · medium confidence lookup

CWE-434: File access and web shell behavior lookup

File traversal and upload weaknesses can lead teams to review file, web shell, execution, and collection telemetry. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.

Open ATT&CK lookup
cwe · medium confidence lookup

CWE-94: Code execution behavior lookup

Code execution and unsafe deserialization weaknesses often justify reviewing execution behavior and process telemetry. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.

Open ATT&CK lookup
description · low confidence lookup

Execution behavior lookup

The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.

Open ATT&CK lookup
cve · low confidence lookup

CVE-2018-25114 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

Open ATT&CK lookup
Vulnerability profileCVE Program record
Severity
Critical
CVSS
9.3 (4.0)
Known Exploited
No
Published

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

1CVSS vectors
0Timeline events
0ADP providers
5Source links

CVSS vector scores

1 official score

We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.

ScoreVersionSeverityVectorExploitImpactSource
9.3CVSS 4.0CriticalCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:NPrimary CVE score

Vulnerability scoring details

Base CVSS 4.0 score

9.3Critical
CVSS 4.0 vector shape for CVE-2018-25114Attack VectorAttack ComplexityAttack RequirementsPrivileges RequiredUser InteractionVS ConfidentialityVS IntegrityVS AvailabilitySS ConfidentialitySS IntegritySS Availability

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Attack Requirements
NonePresent
Privileges Required
NoneLowHigh
User Interaction
NonePassiveActive
VS Confidentiality
HighLowNone
VS Integrity
HighLowNone
VS Availability
HighLowNone
SS Confidentiality
HighLowNone
SS Integrity
HighLowNone
SS Availability
HighLowNone
Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
osCommerceOnline Merchant2.3.4.1unknown
Weakness

CWE details

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.

CWE-434 · source CWE mapping

Unrestricted Upload of File with Dangerous Type

Unrestricted Upload of File with Dangerous Type represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.

CWE-94 · source CWE mapping

Improper Control of Generation of Code ('Code Injection')

Improper Control of Generation of Code ('Code Injection') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.