WPS Hide Login <= 1.9.19 - Unauthenticated Login Page Protection Bypass via 'action' Parameter
- ID
- WPSEC-2026-3080
- Plugin
- WPS Hide Login (wps-hide-login)
- Affected
- from 1.5.1 before 1.9.20
- Remediation
- Update to 1.9.20 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-288
- Usage
- Plugin Medium · Affected versions Medium among sites WPSec scans, 2026-11-13
- Attack surface
- WPS Hide Login on WPSec AttackSurface
- Fix released
- Published
Description
The WPS Hide Login plugin for WordPress is vulnerable to a login page protection bypass via the 'action' parameter in all versions up to, and including, 1.9.19. This is due to the plugin's password-protected post ('postpass') exemption in its wp_loaded handler. The exemption checked only the query-string 'action' value (and, in versions before 1.7, only that a 'post_password' field was posted), while WordPress's wp-login.php acts on $_REQUEST['action'], where a POSTed value overrides the query string. This makes it possible for unauthenticated attackers to reach the default wp-login.php and its login, lost-password and other actions, which the plugin is configured to hide, and so defeat the hidden login URL (for example, to brute-force credentials).
References
- https://wpsec.com/vuln/WPSEC-2026-3080/
- https://plugins.svn.wordpress.org/wps-hide-login/tags/1.9.20/
- https://wordpress.org/plugins/wps-hide-login/
Published by WPSec. Provided as is, without warranty. Corrections: contact us.
This advisory as JSON or Markdown · All advisories: JSON, RSS