# CVE-2026-5200: Acyba AcyMailing missing authorization in WordPress plugin

Source: https://junglewise.ai/threats/cve-2026-5200-acyba-acymailing-missing-authorization-in-wordpress-plugin  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-05-20. Updated: 2026-05-20  
License: CC BY 4.0 with a link back

CVE-2026-5200 · Severity: high · CVSS 8.8 · Published 2026-05-20

AcyMailing, a popular WordPress plugin used for managing newsletters and marketing automation, contains a security flaw that allows low-level users to perform administrative actions. An attacker with a basic subscriber account could modify the plugin's settings or export sensitive security keys. This can ultimately lead to a full takeover of the website's administrator account if the attacker knows the admin's email address.

Technologies: [Acyba AcyMailing](https://junglewise.ai/threats/technologies/acymailing). Vendors: [Acyba](https://junglewise.ai/threats/vendors/acyba).

## Quick answers

**Is CVE-2026-5200 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-5200 being exploited in the wild.

**How severe is CVE-2026-5200?** High severity, with a CVSS score of 8.8, published 20 May 2026.

**Which products and versions are affected?** Acyba AcyMailing up to, and including, 10.8.2.

**Is there a fix for CVE-2026-5200?** 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-2026-5200 attacked?** It is attacked over the network, in a network appliance.

**Am I affected by CVE-2026-5200?** Check whether you run Acyba AcyMailing at an affected version. 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 AcyMailing plugin for WordPress (up to version 10.8.2) suffers from a missing authorization vulnerability (CWE-862) due to insufficient permission checks on certain plugin functions. Authenticated attackers with subscriber-level privileges or higher can exploit this to modify privileged configuration settings and export subscriber secret keys. By chaining these capabilities, an attacker who knows a target administrator's email address can achieve a full account takeover. The vulnerability is addressed in versions following 10.8.2.

## Affected products

- Acyba AcyMailing – An Ultimate Newsletter Plugin and Marketing Automation Solution for WordPress up to, and including, 10.8.2

## Timeline

- 2026-05-20: disclosed: CVE published by Wordfence and NVD

## References

- [https://plugins.trac.wordpress.org/changeset/3516422/acymailing](https://plugins.trac.wordpress.org/changeset/3516422/acymailing)
- [https://www.wordfence.com/threat-intel/vulnerabilities/id/f8470662-2247-4159-9dac-f13677c94bdf?source=cve](https://www.wordfence.com/threat-intel/vulnerabilities/id/f8470662-2247-4159-9dac-f13677c94bdf?source=cve)

## Related threats

- [AcyMailing directory traversal in user name parameter](https://junglewise.ai/threats/cve-2026-77807-acymailing-directory-traversal-in-user-name-parameter)
- [Acyba AcyMailing Stored XSS in alignment attribute](https://junglewise.ai/threats/cve-2026-12170-acyba-acymailing-stored-xss-in-alignment-attribute)