Vulnerability in WP-Members Membership Plugin — CVE-2026-84960
MediumSeverity
—Estimated exploit probability
50,000+ sitesInstalls
3.5.7Fixed in
What to do now
Update WP-Members Membership Plugin to 3.5.7 or later.
Affected versions
- Everything up to and including 3.5.6
Affected: WP-Members Membership Plugin (plugin, wp-members)
What the vulnerability is
The WP-Members Membership Plugin plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via URL Query String in all versions up to, and including, 3.5.6 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. Successful exploitation requires the victim to first visit the attacker-crafted URL and then click the Terms of Service link rendered on the resulting registration page.