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Code injection in osCommerce2 payment page through payment.php

Priority MEDIUM 55CWE-74Published · Updated

Key facts

Attack vector
Network
Privileges required
High
User interaction
Passive
Attack complexity
Low
Attack requirements
None
Impact type
Code execution
Confidentiality · integrity · availability
Low · Low · Low
Fix status
No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-94.

Summary

osCommerce2 up to 2.3.4.1 has a flaw in the include of includes/classes/payment.php on the Payment Page. Improper control of code generation (CWE-94) lets manipulation of the MODULE_PAYMENT_INSTALLED argument inject code. A remote attacker with high privileges can trigger it, and user interaction is required. A public exploit is available and might be used.

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

Description from the CNA

A vulnerability was identified in osCommerce osCommerce2 up to 2.3.4.1. This affects the function include of the file includes/classes/payment.php of the component Payment Page. Such manipulation of the argument MODULE_PAYMENT_INSTALLED leads to code injection. The attack can be executed remotely. The exploit is publicly available and might be used. The project was informed of the problem early through an issue report but has not responded yet.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00186 8th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
Os CommerceosCommerce22.3.4.0; 2.3.4.1—No fix listedCNA
  • osCommerce2 VendorOs Commerce Affected 2.3.4.0; 2.3.4.1 Fixed in — No fix listed CNA

CPE names CNA · 1

CPEVersionsRoleVendor
cpe:2.3:a:oscommerce:oscommerce2:*:*:*:*:*:*:*:*——Os Commerce
  • cpe:2.3:a:oscommerce:oscommerce2:*:*:*:*:*:*:*:* Versions — — ·Os Commerce

Remediation

The sources list no fixed version for osCommerce2.

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

Timeline

  1. 2026-10-05 Threatist record created from CVE-2026-105225
  2. 2026-10-05 Alias added: GHSA-6pgm-x34p-7c8h

References

  • TI-2018-15340 osCommerce 2.3.4.1 Installer Unauthenticated Configuration File Injection PHP Code Execution CVSS 4.0CRITICAL 9.3
  • TI-2009-04916 osCommerce <= 2.2 Admin File Manager Arbitrary PHP Code Execution CVSS 4.0CRITICAL 9.3
  • TI-2019-15550 osCommerce 2.3.4.1 SQL Injection via currency Parameter CVSS 4.0HIGH 8.8
  • TI-2019-15549 osCommerce 2.3.4.1 SQL Injection via products_id Parameter CVSS 4.0HIGH 8.8
  • TI-2019-15548 osCommerce 2.3.4.1 SQL Injection via reviews_id Parameter CVSS 4.0HIGH 8.8
  • TI-2023-06030 osCommerce POST Parameter shopping-cart sql injection CVSS 3.1CRITICAL 9.8
See all 96 →

Sources