Memberpress <= 1.11.24 - Reflected Cross-Site Scripting via message and error

6.1
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CVE CVE-2024-1412
CVSS 6.1 (Medium)
Publicly Published March 21, 2024
Last Updated May 20, 2026
Researcher Jamie Perrelet - Digitalis Web Build Co.

Description

The Memberpress plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the ‘message’ and 'error' parameters in all versions up to, and including, 1.11.26 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick a user into performing an action such as clicking on a link. Note - the issue was partially patched in 1.11.25, but could still potentially be exploited under some circumstances.

Learn more about Cross-Site Scripting vulnerabilities and how to prevent them.

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Vulnerability Details for Memberpress

Software Type Plugin
Software Slug memberpress
Patched? Yes
Remediation Update to version 1.11.27, or a newer patched version
Affected Version
  • <= 1.11.26
Patched Version
  • 1.11.27

Recent vulnerabilities in Memberpress

# Title CVE ID CVSS Researchers Date
1 Memberpress <= 1.11.37 - Unauthenticated Content Restriction Bypass to Sensitive Information Exposure CVE-2024-11299 5.3 Francesco Carlucci April 21, 2025
2 Memberpress < 1.12.0 - Reflected Cross-Site Scripting CVE-2025-39407 6.1 0xd4rk5id3 April 17, 2025
3 MemberPress <= 1.11.29 - Reflected Cross-Site Scripting via mepr_screenname and mepr_key Parameters CVE-2024-5024 6.1 stealthcopter August 29, 2024
4 Memberpress <= 1.11.34 - Missing Authorization CVE-2024-43956 5.3 Ananda Dhakal August 26, 2024
5 MemberPress <= 1.11.29 - Authenticated (Contributor+) Blind Server-Side Request Forgery via mepr-user-file Shortcode CVE-2024-5031 8.5 stealthcopter May 21, 2024
6 MemberPress <= 1.11.29 - Authenticated (Contributor+) Stored Cross-Site Scripting via arglist Parameter CVE-2024-5025 6.4 stealthcopter May 21, 2024

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