Vulnerabilities / AcyMailing / WPSEC-2026-3076
AcyMailing < 11.1.2 - Unauthenticated Missing Authorization to Subscriber Unsubscription
Medium 5.3
CWE-862Fixed in 11.1.2
- ID
- WPSEC-2026-3076
- Plugin
- AcyMailing – An Ultimate Newsletter Plugin and Marketing Automation Solution for WordPress (acymailing)
- Affected
- all versions before 11.1.2
- Remediation
- Update to 11.1.2 or later.
- CVSS 3.1
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
- Weakness
- CWE-862
- Usage
- Plugin Medium · Affected versions Medium among sites WPSec scans, 2026-11-13
- Attack surface
- AcyMailing on WPSec AttackSurface
- Fix released
- Published
Description
The AcyMailing plugin for WordPress is vulnerable to unauthorized modification of data in all versions up to, and including, 11.1.1. This is due to the unsubscribe handler and the subscription form acting on the subscriber matching a submitted email address without verifying that the requester owns that address, unless subscriber data modifications without authentication were disabled. This makes it possible for unauthenticated attackers to unsubscribe any subscriber whose email address they know from mailing lists.
References
- https://wpsec.com/vuln/WPSEC-2026-3076/
- https://plugins.svn.wordpress.org/acymailing/tags/11.1.2/
- https://wordpress.org/plugins/acymailing/
Published by WPSec. Provided as is, without warranty. Corrections: contact us.
This advisory as JSON or Markdown · All advisories: JSON, RSS