CVE-2026-94132 Joomla Extension acymailing.com - Remote Code Execution

Joomla Extension acymailing.com < 11.1.0 contains a remote code execution caused by lack of extension check on MIME parts saved in mailbox action feature, letting attackers upload PHP files remotely via email, exploit requires ability to send email to monitored mailbox.

CVSS base score 9.5 /10
Critical
CISA KEV
Not listed
Public exploit
Proof of concept available
Authentication
Not required
EPSS
0.55% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Remote Code Execution
Impact
Remote Code Execution, File System Write
CVSS 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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Published
26 September 2026
Updated
15 October 2026
Weakness
CWE-434

Vendor fix

Update to version 11.1.0 or later.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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