Access Control Flaw in ThemeGrill User Registration Plugin for WordPress
CVE-2026-109699

5.4MEDIUM

Key Information:

Vendor

WordPress
Status
User Registration
Vendor
CVE Published:
13 October 2026

What is CVE-2026-109699?

A missing authorization vulnerability has been identified in the ThemeGrill User Registration plugin. This flaw allows unauthorized access potentially leading to compromised user accounts due to incorrectly configured access control settings. It affects versions from n/a to 5.2.8 of the plugin, posing significant security risks for WordPress sites utilizing this registration system.

Affected Version(s)

User Registration 0 <= 5.2.8

References

https://patchstack.com/database/wordpress/plugin/user-reg...
vdb-entry

CVSS V3.1

Score:
5.4
Severity:
MEDIUM
Confidentiality:
None
Integrity:
Low
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

nov1337 | Patchstack Bug Bounty Program
.