Simple User Registration <= 6.4 - Authenticated (Contributor+) Privilege Escalation

Improper Privilege Management
CVE CVE-2025-53428
CVSS High (8.8)
Publicly Published September 20, 2025
Last Updated November 4, 2025
Researcher Peter Thaleikis
Description

The Simple User Registration plugin for WordPress is vulnerable to Privilege Escalation in all versions up to, and including, 6.4. This makes it possible for authenticated attackers, with Contributor-level access and above, to gain access to administrative-level user accounts.

References

1 affected software package

Software Type Plugin
Software Slug wp-registration (view on wordpress.org)
Patched? No
Affected Version
  • <= 6.4
Patched Version
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