Vulnerability · Published May 20, 2026 · Assigned by Wordfence
CVE-2026-5200AcyMailing <= 10.8.2 - Missing Authorization to Authenticated (Subscriber+) Privilege Escalation via 'acymailing_router'
High 8.8
In plain English
A high-severity missing authorization in AcyMailing – An Ultimate Newsletter Plugin and Marketing Automation Solution for WordPress from acyba. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 27% of all known vulnerabilities).
Official description
The AcyMailing – An Ultimate Newsletter Plugin and Marketing Automation Solution for WordPress plugin for WordPress is vulnerable to Missing Authorization in versions up to, and including, 10.8.2. This is due to the plugin not properly verifying that a user is authorized to perform an action. This makes it possible for authenticated attackers, with subscriber-level access and above, to modify privileged AcyMailing configuration, export subscriber secret keys, and chain these actions into administrator account takeover when a target administrator email address is known.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| acyba | AcyMailing – An Ultimate Newsletter Plugin and Marketing Automation Solution for WordPress | 0 – through 10.8.2 |
Weakness: CWE-862 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H