Remote PHP upload RCE in a popular Joomla extension (AcyMailing) enabling full site/server takeover; affects many Joomla sites and warrants broad IT notification.
CVE-2026-94132
Critical RCE in AcyMailing mailbox allows PHP upload via email
Is CVE-2026-94132 being exploited?
Not confirmed. CVE-2026-94132 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked. EPSS currently estimates a 0.55% probability of exploitation in the next 30 days.
How severe is CVE-2026-94132?
CVE-2026-94132 is rated Critical with a CVSS score of 9.5. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2026-94132?
Yes. A fix has been recorded for CVE-2026-94132. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-94132 affect?
CVE-2026-94132 affects AcyMailing Enterprise extension <11.1.0, Joomla sites using AcyMailing mailbox feature. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-94132?
Upgrade AcyMailing to 11.1.0+ or disable mailbox monitoring until patched
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Remote code execution: attacker can upload PHP to webroot via emailed MIME parts and execute arbitrary code, enabling site compromise.
Immediate action required
- affected1.0.0-11.0.5
As published in the CVE Program record. A version outside these ranges is not a statement that it is unaffected — vendors sometimes understate a range, and distribution-backported builds carry upstream numbers that do not reflect what was patched into them.