Ultimate Dashboard – Custom WordPress Dashboard <= 3.8.18 - Unauthenticated Protection Mechanism Bypass via Password-Protected Post Requests
- ID
- WPSEC-2026-3161
- Plugin
- Ultimate Dashboard – Custom WordPress Dashboard (ultimate-dashboard)
- Affected
- from 3.5 before 4.0
- Remediation
- Update to 4.0 or later.
- CVSS 3.1
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
- Weakness
- CWE-693
- Usage
- Plugin Low · Affected versions Low among sites WPSec scans, 2026-11-15
- Attack surface
- Ultimate Dashboard – Custom WordPress Dashboard on WPSec AttackSurface
- Fix released
- Published
Description
The Ultimate Dashboard plugin for WordPress is vulnerable to a bypass of its custom login URL protection via password-protected post (postpass) requests in all versions up to, and including, 3.8.18, due to the protect_wp_login() function skipping its protection whenever the query string has action=postpass and a post_password parameter is present, while wp-login.php takes the action from $_REQUEST, where a POST 'action' field overrides the query string. This makes it possible for unauthenticated attackers to use the default wp-login.php for other actions, such as logging in, even though the site owner enabled a custom login URL to hide it. Exploitation requires the custom login URL feature to be enabled.
References
- https://wpsec.com/vuln/WPSEC-2026-3161/
- https://plugins.svn.wordpress.org/ultimate-dashboard/tags/4.0/
- https://wordpress.org/plugins/ultimate-dashboard/
Published by WPSec. Provided as is, without warranty. Corrections: contact us.
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