CVE-2026-25467 PUBLISHED

WordPress User Registration plugin <= 5.3.0 - Content Injection vulnerability

Assigner: Patchstack
Reserved: 02.02.2026 Published: 29.10.2026 Updated: 29.10.2026

Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS) vulnerability in ThemeGrill User Registration user-registration allows Code Injection.This issue affects User Registration: from n/a through 5.3.0.

Metrics

CVSS 3.1

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
CVSS Score: 5.3

Attack Vector	Network	Scope	Unchanged
Attack Complexity	Low	Confidentiality Impact	Low
Privileges Required	None	Integrity Impact	None
User Interaction	None	Availability Impact	None

CVSS 3.1

Product Status

Vendor	ThemeGrill
Product	User Registration
Versions	Default: unaffected affected from 0 to 5.3.0 (incl.)

Solutions

Update the WordPress User Registration plugin to the latest available version (at least 5.3.1).

Credits

Filip Kowalski | Patchstack Bug Bounty Program finder

References

https://patchstack.com/database/wordpress/plugin/user-registration/vulnerability/wordpress-user-registration-plugin-5-3-0-content-injection-vulnerability?_s_id=cve

Problem Types

Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS) CWE

Impacts

Code Injection