Access Control Flaw in ThemeGrill User Registration Plugin by ThemeGrill
CVE-2026-120840

4.3MEDIUM

Key Information:

Vendor

WordPress
Status
User Registration
Vendor
CVE Published:
7 November 2026

What is CVE-2026-120840?

A missing authorization vulnerability exists in the ThemeGrill User Registration Plugin, allowing an attacker to exploit incorrectly configured access control security levels. This issue affects all versions up to 5.3.0, potentially enabling unauthorized access to sensitive functions. It is essential for users to ensure their installations are running the latest versions and to review their access control settings to protect against potential exploitation.

Affected Version(s)

User Registration 0 <= 5.3.0

References

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

CVSS V3.1

Score:
4.3
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

fccsec.dev | Patchstack Bug Bounty Program
.