# CVE-2026-94131: AcyMailing arbitrary file deletion via custom field

Source: https://junglewise.ai/threats/cve-2026-94131-joomla-extension-acymailing-com-unauthenticated-arbitrary-file  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-09-26. Updated: 2026-09-26  
License: CC BY 4.0 with a link back

CVE-2026-94131 · Severity: info · Published 2026-09-26

AcyMailing is an email marketing platform used in Joomla and WordPress to manage newsletters and campaigns. The Enterprise extension before version 11.1.0 allows unauthenticated attackers to delete arbitrary files on the server—including critical configuration files—by exploiting how the system handles file-type custom fields, potentially causing complete system compromise or data loss.

## Quick answers

**Is CVE-2026-94131 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-94131 being exploited in the wild.

**How severe is CVE-2026-94131?** Informational severity, published 26 September 2026.

**Which products and versions are affected?** AcyMailing AcyMailing Enterprise < 11.1.0.

**Is there a fix for CVE-2026-94131?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2026-94131 attacked?** It is attacked over the network, in a software library.

**Am I affected by CVE-2026-94131?** Check whether anything you run is named in the advisory. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

The vulnerability exists in AcyMailing Enterprise's handling of file-type custom fields, where a subscriber can store a file path and trigger deletion of that file when the field is cleared. The vulnerability permits path traversal, allowing deletion of files outside the intended upload directory. No authentication is required, and the attack is triggered through normal field-clearing operations.

## Affected products

- AcyMailing AcyMailing Enterprise < 11.1.0

## Timeline

- 2026-09-26: disclosed

## References

- [https://www.acymailing.com/](https://www.acymailing.com/)