CVE-2024-8520: Ultimate Member <= 2.8.6 - Cross-Site Request Forgery to Membership Status Change
First published: Fri Oct 04 2024(Updated: )
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.
Credit: security@wordfence.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Ultimate Member | <2.8.7 |
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Reference Links
- https://www.wordfence.com/threat-intel/vulnerabilities/id/7ffddc03-d4ae-460e-972a-98804d947d09?source=cve
- 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/class-admin.php#L1880
- https://github.com/ultimatemember/ultimatemember/blob/7b8a7a7c039bde4539c07e049b19036192f1c133/includes/admin/core/class-admin-users.php#L41C4-L41C90
- 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/class-admin.php#L1945
- https://github.com/ultimatemember/ultimatemember/blob/7b8a7a7c039bde4539c07e049b19036192f1c133/includes/admin/core/class-admin-users.php#L175C1-L178C7
- https://github.com/ultimatemember/ultimatemember/pull/1549
- https://plugins.trac.wordpress.org/changeset/3160947/ultimate-member/trunk/includes/admin/class-admin.php
Frequently Asked Questions
What is the severity of CVE-2024-8520?
CVE-2024-8520 has a severity rating that indicates it poses a risk of Cross-Site Request Forgery.
How do I fix CVE-2024-8520?
To fix CVE-2024-8520, update the Ultimate Member plugin to version 2.8.7 or later.
What versions of the Ultimate Member plugin are affected by CVE-2024-8520?
CVE-2024-8520 affects all versions of the Ultimate Member plugin up to and including version 2.8.6.
What type of vulnerability is CVE-2024-8520?
CVE-2024-8520 is a Cross-Site Request Forgery vulnerability.
Is nonce validation related to CVE-2024-8520?
Yes, CVE-2024-8520 is due to missing or incorrect nonce validation.
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