Vulnerabilities / Subscribe to Comments / WPSEC-2026-0590
Subscribe to Comments <= 2.3.1 - Authenticated (Author+) Missing Authorization to Plugin Settings Update
Medium 6.4
CWE-862Fixed in 2.3.2
- ID
- WPSEC-2026-0590
- Plugin
- Subscribe to Comments (subscribe-to-comments)
- Affected
- all versions before 2.3.2
- Remediation
- Update to 2.3.2 or later.
- CVSS 3.1
- CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
- Weakness
- CWE-862
- Usage
- Plugin Low · Affected versions None seen among sites WPSec scans, 2026-10-07
- Attack surface
- Subscribe to Comments on WPSec AttackSurface
- Fix released
- Published
Description
The Subscribe to Comments plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on its settings page in all versions up to, and including, 2.3.1. This makes it possible for authenticated attackers, with Author-level access and above, to change the plugin's settings, including injecting scripts into the comment form text and setting the secret used to generate subscription-management keys.
References
- https://wpsec.com/vuln/WPSEC-2026-0590/
- https://plugins.svn.wordpress.org/subscribe-to-comments/tags/2.3.2/
- https://wordpress.org/plugins/subscribe-to-comments/
Published by WPSec. Provided as is, without warranty. Corrections: contact us.
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