CVE-2026-12426 Details
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.
A vulnerability allowing sensitive information exposure has been identified in the Members – Membership & User Role Editor Plugin for WordPress, affecting all versions through 3.2.22. The issue arises in the REST API, where unauthenticated users can exploit the 'members_filter_protected_posts_for_rest' function. This exploitation allows attackers to determine the existence and count of access-restricted posts and use pagination to infer keywords and content from those hidden posts.
Users are advised to update the Members WordPress plugin to version 3.2.23 or later, where this vulnerability has been patched.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Jul 11, 2026CISA-ADP
Assessed Jul 14, 2026References to Advisories, Solutions, and Tools
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Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-200 | Exposure of Sensitive Information to an Unauthorized Actor | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| Members | <= 3.2.22 (semver) |
CPE
Remediation
| |
Change History
2 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jul 14, 2026 | CVE Modified | CISA-ADP |
| Jul 11, 2026 | New CVE Received | [email protected] |