Vulnerabilities / AcyMailing / WPSEC-2026-3078
AcyMailing < 11.1.2 - Authenticated (Subscriber+) Insecure Direct Object Reference to Subscription Modification via 'user_id' Parameter
Medium 4.3
CWE-639Fixed in 11.1.2
- ID
- WPSEC-2026-3078
- 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:L/UI:N/S:U/C:N/I:L/A:N
- Weakness
- CWE-639
- 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 Insecure Direct Object Reference in all versions up to, and including, 11.1.1. This is due to the unsubscribe page actions accepting any logged-in user as identified and then loading the subscriber to modify from a user-supplied ID, without checking that subscriber's key. This makes it possible for authenticated attackers, with subscriber-level access and above, to subscribe other subscribers to, or unsubscribe them from, mailing lists.
References
- https://wpsec.com/vuln/WPSEC-2026-3078/
- 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.
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