Simple User Registration: Privilege escalation or authentication bypass
Simple User Registration is affected by privilege escalation or authentication bypass. Exploitation requires an authenticated WordPress account. A successful request can grant permissions or access that the caller should not possess.
- Component
- Simple User Registration
- Plugin slug
wp-registration- Affected
- See vendor advisory
- Safe version
- See mitigation notes
- Published
- Jan 28, 2026
This CVE was published Jan 28, 2026 and is one of 4 known issues for this plugin.
Update, patch or deactivate.
Update Simple User Registration to a release outside the affected range, or disable and remove it until a fixed version is available.
No confirmed safe version is listed. Consider a vendor-supported patch or temporarily restricting the affected functionality while you assess the risk.
Deactivate only when warranted by your risk profile, or when advised by your hosting provider in the limited circumstances where the vulnerability cannot otherwise be mitigated. If you’re unsure which action is appropriate, contact Fused or your hosting provider for guidance.
Technical 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.
CVE / CNA vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H