CVE-2026-94132 File upload in AcyMailing Enterprise extension for Joomla

Critical 9.5 Published Updated

Attackers can upload PHP files via email to the monitored mailbox, leading to remote code execution on the Joomla server.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2026-94132?

CVE-2026-94132 is a critical vulnerability in acymailing.com AcyMailing Enterprise extension for Joomla, published on 26 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official 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.

Weakness: CWE-434

Which versions are affected by CVE-2026-94132?

It affects 1 product.

Products include Acymailing Acymailing.

How do I fix CVE-2026-94132?

No fix has been published for CVE-2026-94132 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-94132 being exploited?

There is no known exploitation of CVE-2026-94132 in the wild and no public exploit code.

Public exploit code: 1 proofs of concept on GitHub.

Sources

Also known as GHSA-x2ch-94w5-cr2g.

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