CVE-2026-96565 json
WP-Members Membership Plugin <= 3.5.7 - Authenticated (Subscriber+) Stored Cross-Site Scripting via WooCommerce Checkout Multicheckbox/Multiselect Field
published 4d ago modified 4d ago also EUVD-2026-119143
- cvss
- 6.4
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.3%
- EPSS 0.3% chance of exploitation in 30 days, percentile 28%
- public exploits
- 0
- none known
Summary
The WP-Members Membership Plugin plugin for WordPress is vulnerable to Stored Cross-Site Scripting via WooCommerce Checkout Multicheckbox/Multiselect Field (scalar bypass of wpmem_sanitize_array) in all versions up to, and including, 3.5.7 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with subscriber-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This is only exploitable via the WooCommerce classic checkout path, as the sibling registration, profile, and account-edit handlers implode the value before sanitization, which raises a PHP 8 TypeError on scalar input and fails closed.
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Check with FencerCISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 4d ago
Exploit prediction
0.34% chance of exploitation in the next 30 days, higher than 28% of all scored CVEs (FIRST EPSS, 2026-11-11).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 6.4 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N |
Affected products
- cbutlerjr WP-Members Membership Plugin
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
- Technology feeds
References
- wordfence.com /threat-intel/vulnerabilities/id/3872211b-b7d9-4d71-a371-9099392b4678?source=cve
- plugins.trac.wordpress.org /browser/wp-members/tags/3.5.7/includes/admin/class-wp-members-admin-users.php#L555
- plugins.trac.wordpress.org /browser/wp-members/tags/3.5.7/includes/api/api-forms.php#L540
- plugins.trac.wordpress.org /browser/wp-members/tags/3.5.7/includes/api/api-forms.php#L372
- plugins.trac.wordpress.org /browser/wp-members/tags/3.5.7/includes/vendor/rocketgeek-utilities/includes/forms.php#L143
- plugins.trac.wordpress.org /browser/wp-members/tags/3.5.7/includes/api/api-forms.php#L530
- plugins.trac.wordpress.org /changeset?reponame=&new=3753517%40wp-members%2Ftrunk&old=3686809%40wp-members%2Ftrunk
- plugins.trac.wordpress.org /browser/wp-members/tags/3.5.8/includes/admin/class-wp-members-admin-users.php
Sources
- CVE List CVE-2026-96565
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.