Medium severity4.3NVD Advisory· Published Jul 1, 2023· Updated Jun 17, 2026
CVE-2021-4402
CVE-2021-4402
Description
The Multiple Roles plugin for WordPress is vulnerable to Cross-Site Request Forgery in versions up to, and including, 1.3.1. This is due to missing or incorrect nonce validation on the mu_add_roles_in_signup_meta() and mu_add_roles_in_signup_meta_recently() functions. This makes it possible for unauthenticated attackers to add additional roles to users via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.
Affected products
2- cpe:2.3:a:multiple_roles_project:multiple_roles:*:*:*:*:*:wordpress:*:*Range: <=1.3.1
- Range: <=1.3.1
Patches
Vulnerability mechanics
References
9- plugins.trac.wordpress.org/changesetnvdPatch
- blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilities-part-2/nvdThird Party Advisory
- www.wordfence.com/threat-intel/vulnerabilities/id/862fa0c3-c16f-493e-9bf6-92debc0e30f6nvdThird Party Advisory
- blog.nintechnet.com/25-wordpress-plugins-vulnerable-to-csrf-attacks/nvdNot Applicable
- blog.nintechnet.com/more-wordpress-plugins-and-themes-vulnerable-to-csrf-attacks/nvdNot Applicable
- blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilities-part-1/nvdNot Applicable
- blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilities-part-3/nvdNot Applicable
- blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilities-part-4/nvdNot Applicable
- blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilities-part-5/nvdNot Applicable
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