Code Injection Vulnerability in osCommerce Newsletter Management Module
CVE-2026-105226

5.1MEDIUM

Key Information:

Vendor

Oscommerce

Status
Oscommerce2
Vendor
CVE Published:
5 October 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-105226?

A code injection vulnerability has been identified in the Newsletter Management module of osCommerce versions up to 2.3.4.1. This security flaw resides in the 'include' function within the admin/newsletters.php file. By manipulating the argument module, an attacker can potentially execute remote code, allowing unauthorized commands to be run on the server. The exploit has been publicly disclosed, and while the osCommerce project was alerted to this issue through an issue report, no response has been documented. Users are advised to review their systems for this vulnerability to prevent potential exploitation.

Affected Version(s)

osCommerce2 2.3.4.0

osCommerce2 2.3.4.1

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-105226 - Proof of Concept

References

https://vuldb.com/vuln/413428
vdb-entrytechnical-description
https://vuldb.com/vuln/413428/cti
signaturepermissions-required
https://vuldb.com/cve/CVE-2026-105226
third-party-advisory

CVSS V4

Score:
5.1
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

360alphalab (VulDB User)
VulDB CNA Team
.