Stored Cross-Site Scripting Vulnerability in Simple User Registration Plugin for WordPress
CVE-2025-12160

7.2HIGH

Key Information:

Vendor

WordPress
Status
Simple User Registration
Vendor
CVE Published:
21 November 2025

What is CVE-2025-12160?

The Simple User Registration plugin for WordPress is susceptible to a Stored Cross-Site Scripting (XSS) vulnerability through the 'wpr_admin_msg' parameter. This occurs in all versions up to and including 6.6 due to inadequate input validation and lack of output escaping. An unauthenticated attacker can exploit this flaw to inject malicious scripts into the web pages, which may execute automatically when a user accesses a compromised page, leading to a potential breach of user data and site integrity.

Affected Version(s)

Simple User Registration * <= 6.6

References

https://www.wordfence.com/threat-intel/vulnerabilities/id...
https://plugins.trac.wordpress.org/changeset?sfp_email=&s...

CVSS V3.1

Score:
7.2
Severity:
HIGH
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Athiwat Tiprasaharn
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