Cross-site Scripting Vulnerability in ThemeGrill User Registration Plugin
CVE-2026-105882

6.5MEDIUM

Key Information:

Vendor

WordPress
Status
User Registration
Vendor
CVE Published:
15 October 2026

What is CVE-2026-105882?

The ThemeGrill User Registration plugin is vulnerable to a Stored Cross-site Scripting (XSS) issue, which arises from inadequate input validation. This vulnerability allows attackers to inject malicious scripts into the web pages generated by the plugin. Potentially exploited, this could lead to unauthorized access to sensitive user information and compromise site security. Users of affected versions are strongly advised to update to the latest release to mitigate these risks.

Affected Version(s)

User Registration 0 <= 5.2.8

References

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

CVSS V3.1

Score:
6.5
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
Required
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Pr0f | Patchstack Bug Bounty Program
.