CVE-2026-12426 json
Members <= 3.2.22 - Unauthenticated Sensitive Information Disclosure via REST API Pagination Side Channel
published 3mo ago modified 3mo ago also EUVD-2026-43125
- cvss
- 5.3
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.5%
- EPSS 0.5% chance of exploitation in 30 days, percentile 41%
- public exploits
- 0
- none known
Summary
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.
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Check with FencerCISA SSVC
- Exploitation
- none
- Automatable
- yes
- Technical impact
- partial
- Assessed
- 3mo ago
Exploit prediction
0.48% chance of exploitation in the next 30 days, higher than 41% of all scored CVEs (FIRST EPSS, 2026-11-09).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N |
Affected products
- supercleanse Members – Membership & User Role Editor Plugin
Classification
- Weakness
-
- CWE-200 Exposure of Sensitive Information to an Unauthorized Actor
- Technology feeds
References
- wordfence.com /threat-intel/vulnerabilities/id/9c3557a6-aa72-496c-8515-2f6055de6b22?source=cve
- plugins.trac.wordpress.org /browser/members/tags/3.2.22/inc/functions-content-permissions.php#L337
- plugins.trac.wordpress.org /browser/members/tags/3.2.22/inc/functions-private-site.php#L42
- plugins.trac.wordpress.org /browser/members/tags/3.2.19/inc/functions-content-permissions.php#L337
- plugins.trac.wordpress.org /browser/members/tags/3.2.19/inc/functions-private-site.php#L42
- plugins.trac.wordpress.org /changeset?sfp_email=&sfph_mail=&reponame=&new=3594293%40members%2Ftrunk&old=3552545%40members%2Ftrunk&sfp_ema
Sources
- CVE List CVE-2026-12426
- NVD CVE-2026-12426
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