What’s Vulnerable › Vulnerabilities

CVE-2024-8520: Ultimate Member <= 2.8.6 - Cross-Site Request Forgery to Membership Status Change

• Severity: medium (CVSS 4.3 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: 2024-10-04 · updated 2026-06-17
• Weakness: CWE-352

Description

The Ultimate Member – User Profile, Registration, Login, Member Directory, Content Restriction & Membership Plugin plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 2.8.6. This is due to missing or incorrect nonce validation on the admin_init or user_action_hook function. This makes it possible for unauthenticated attackers to modify a users membership status via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.

Affected products

• ultimatemember Ultimate Member – User Profile, Registration, Login, Member Directory, Content Restriction & Membership P: before 2.8.7 — fixed in 2.8.7

How to fix

Upgrade to a fixed version: ultimatemember Ultimate Member – User Profile, Registration, Login, Member Directory, Content Restriction & Membership P 2.8.7. Check the vendor advisory for mitigations.

References

• https://github.com/ultimatemember/ultimatemember/blob/7b8a7a7c039bde4539c07e049b19036192f1c133/includes/admin/class-admin.php#L1880
• https://github.com/ultimatemember/ultimatemember/blob/7b8a7a7c039bde4539c07e049b19036192f1c133/includes/admin/class-admin.php#L1945
• https://github.com/ultimatemember/ultimatemember/blob/7b8a7a7c039bde4539c07e049b19036192f1c133/includes/admin/class-admin.php#L1948C1-L1959C6
• https://github.com/ultimatemember/ultimatemember/blob/7b8a7a7c039bde4539c07e049b19036192f1c133/includes/admin/class-admin.php#L70C4-L70C84
• https://github.com/ultimatemember/ultimatemember/blob/7b8a7a7c039bde4539c07e049b19036192f1c133/includes/admin/core/class-admin-users.php#L146C1-L173C12
• https://github.com/ultimatemember/ultimatemember/blob/7b8a7a7c039bde4539c07e049b19036192f1c133/includes/admin/core/class-admin-users.php#L175C1-L178C7
• https://github.com/ultimatemember/ultimatemember/blob/7b8a7a7c039bde4539c07e049b19036192f1c133/includes/admin/core/class-admin-users.php#L41C4-L41C90
• https://github.com/ultimatemember/ultimatemember/pull/1549
• https://plugins.trac.wordpress.org/changeset/3160947/ultimate-member/trunk/includes/admin/class-admin.php
• https://www.wordfence.com/threat-intel/vulnerabilities/id/7ffddc03-d4ae-460e-972a-98804d947d09?source=cve

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