CVE-2026-96565WP-Members Membership Plugin <= 3.5.7 - Authenticated (Subscriber+) Stored Cross-Site Scripting via WooCommerce Checkout Multicheckbox/Multiselect Field
- 6.4MediumCVSS base score
- 0.34%Exploitation in 30 daysEPSS · top 72% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
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.
Timeline
ID reserved
By Wordfence
- 45 days later
· 45 days later
Published
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| WordfenceCNA (assigner) | 3.1 | Medium6.4 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N |
| NVDNVD · Deferred | 3.1 | Medium6.4 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N |
- EPSS (exploitation in 30 days)
- 0.34% · top 72% of all CVEs (15 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 6.4.
Affected products
cbutlerjr · WP-Members Membership Plugin
- affected ≤ 3.5.7
References
References8
- https://www.wordfence.com/threat-intel/vulnerabilities/id/3872211b-b7d9-4d71-a371-9099392b4678?source=cve (opens in a new tab)
- https://plugins.trac.wordpress.org/browser/wp-members/tags/3.5.7/includes/admin/class-wp-members-admin-users.php#L555 (opens in a new tab)
- https://plugins.trac.wordpress.org/browser/wp-members/tags/3.5.7/includes/api/api-forms.php#L540 (opens in a new tab)
- https://plugins.trac.wordpress.org/browser/wp-members/tags/3.5.7/includes/api/api-forms.php#L372 (opens in a new tab)
- https://plugins.trac.wordpress.org/browser/wp-members/tags/3.5.7/includes/vendor/rocketgeek-utilities/includes/forms.php#L143 (opens in a new tab)
- https://plugins.trac.wordpress.org/browser/wp-members/tags/3.5.7/includes/api/api-forms.php#L530 (opens in a new tab)
- https://plugins.trac.wordpress.org/changeset?reponame=&new=3753517%40wp-members%2Ftrunk&old=3686809%40wp-members%2Ftrunk (opens in a new tab)
- https://plugins.trac.wordpress.org/browser/wp-members/tags/3.5.8/includes/admin/class-wp-members-admin-users.php (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2026-119143 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2026-96565)Record last updated .