Vulnerability Description
The Members – Membership & User Role Editor Plugin plugin for WordPress is vulnerable to Sensitive Information Exposure in all versions up to, and including, 3.2.22 via the members_filter_protected_posts_for_rest. This makes it possible for unauthenticated attackers to extract determine the existence and exact count of access-restricted posts, and use per-page pagination as a boolean oracle to infer keywords and content contained within those hidden restricted posts.
CVSS Score
MEDIUM
Related Weaknesses (CWE)
References
- https://plugins.trac.wordpress.org/browser/members/tags/3.2.19/inc/functions-con
- https://plugins.trac.wordpress.org/browser/members/tags/3.2.19/inc/functions-pri
- https://plugins.trac.wordpress.org/browser/members/tags/3.2.22/inc/functions-con
- https://plugins.trac.wordpress.org/browser/members/tags/3.2.22/inc/functions-pri
- https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&new
- https://www.wordfence.com/threat-intel/vulnerabilities/id/9c3557a6-aa72-496c-851
FAQ
What is CVE-2026-12426?
CVE-2026-12426 is a vulnerability with a CVSS score of 5.3 (MEDIUM). The Members – Membership & User Role Editor Plugin plugin for WordPress is vulnerable to Sensitive Information Exposure in all versions up to, and including, 3.2.22 via the members_filter_protected_po...
How severe is CVE-2026-12426?
CVE-2026-12426 has been rated MEDIUM with a CVSS base score of 5.3/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-12426?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.