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OpenAdvisories
High · 7.2 CVE-2025-12160 EUVD-2025-198431GHSA-qpjp-43f6-4f6v

Simple User Registration <= 6.6 - Unauthenticated Stored Cross-Site Scripting

Published Nov 21, 2025 · Updated Apr 8, 2026 · Assigned by Wordfence

Description

The Simple User Registration plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'wpr_admin_msg' parameter in all versions up to, and including, 6.6 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

Affected products

VendorProductAffectedFixed
nmedia Simple User Registration ≤ 6.6 —

References