What’s Vulnerable › Vulnerabilities

CVE-2025-13367: User Registration & Membership – Custom Registration Form Builder, Custom Login Form, User Profile, Content Restriction & Membership Plugin <= 4.4.6 - Authenticated (Contributor+) Stored Cross-Site Scripting via Shortcode Attributes

• Severity: medium (CVSS 6.4 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-12-15 · updated 2026-10-07
• Weakness: CWE-79

Description

The User Registration & Membership – Custom Registration Form Builder, Custom Login Form, User Profile, Content Restriction & Membership Plugin for WordPress is vulnerable to Stored Cross-Site Scripting via multiple shortcode attributes in all versions up to, and including, 4.4.6 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with contributor level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

Affected products

• wpeverest User Registration & Membership – Free & Paid Memberships, Subscriptions, Content Restriction, User Profile, Cu: through 4.4.6

References

• https://plugins.trac.wordpress.org/changeset/3412096/user-registration/trunk/modules/membership/includes/Templates/membership-listing.php
• https://plugins.trac.wordpress.org/changeset/3412096/user-registration/trunk/modules/membership/includes/Templates/thank-you-page.php
• https://www.wordfence.com/threat-intel/vulnerabilities/id/2244945a-5b3a-463d-9910-46a6f7afaf6c?source=cve

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