Simple Membership Custom Messages
Simple Membership Custom Messages has one disclosed vulnerability in the WordSec catalog, all reported in 2025; it is fixed as of September 2026. Their average CVSS score is 6.1, and the most serious one scores 6.1 out of 10.
The most common weakness is Cross-Site Scripting, behind 1 of the records (100%).
The one issue recorded for Simple Membership Custom Messages has a vendor fix available, so running the current release closes it.
All of these findings were reported by 0xd4rk5id3. Simple Membership Custom Messages is installed on roughly 7,000 WordPress sites, so each unpatched flaw has a wide blast radius. The current release is tested up to WordPress 7.1.
CVE-2025-24660Simple Membership Custom Messages <= 2.4 - Reflected Cross-Site Scripting
Read the full analysisVulnerability Records
Simple Membership Custom Messages
Author
wp.insider
This addon allows you to customize the content protection message that gets output from the membership plugin. You will be able to specify your custom messages for different types of protection message. This addon requires the Simple Membership Plugin. After you install this addon, go to the “Custom Message” menu from the admin dashboard to use it. Read Usage Documentation
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