Simple User Registration <= 6.7 - Authenticated (Subscriber+) Privilege Escalation via profile_save_field

Improper Access Control
CVE CVE-2026-0844
CVSS High (8.8)
Publicly Published January 27, 2026
Last Updated January 30, 2026
Researcher johska
Description

The Simple User Registration plugin for WordPress is vulnerable to privilege escalation in versions up to, and including, 6.7 due to insufficient restriction on the 'profile_save_field' function. This makes it possible for authenticated attackers, with minimal permissions such as a subscriber, to modify their user role by supplying the 'wp_capabilities' parameter during a profile update.

References

1 affected software package

Software Type Plugin
Software Slug wp-registration (view on wordpress.org)
Patched? Yes
Affected Version
  • <= 6.7
Patched Version
  • 6.8
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