Vulnerabilities / Pie Register / WPSEC-2026-2121
Pie Register <= 3.8.4.15 - Unauthenticated Missing Authorization to Plugin Settings Reset
Medium 5.3
CWE-862Fixed in 3.8.4.16
- ID
- WPSEC-2026-2121
- Plugin
- Pie Register – User Registration, Profiles & Content Restriction (pie-register)
- Affected
- all versions before 3.8.4.16
- Remediation
- Update to 3.8.4.16 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 Low · Affected versions Low among sites WPSec scans, 2026-10-30
- Attack surface
- Pie Register on WPSec AttackSurface
- Fix released
- Published
Description
The pie-register plugin for WordPress is vulnerable to unauthorized modification of data in all versions up to, and including, 3.8.4.15 due to a missing capability and nonce check on the settings reset routine, which ran whenever the 'piereg_default_settings' POST parameter was present. This makes it possible for unauthenticated attackers to reset all of the plugin's settings to their defaults, wiping the site's registration configuration.
References
- https://wpsec.com/vuln/WPSEC-2026-2121/
- https://plugins.svn.wordpress.org/pie-register/tags/3.8.4.16/
- https://wordpress.org/plugins/pie-register/
Published by WPSec. Provided as is, without warranty. Corrections: contact us.
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