CVE-2022-4939 json
WCFM Membership <= 2.10.0 - Unauthenticated Privilege Escalation
published 2023-04-05 3 y ago modified 2026-06-17 4 mo ago also EUVD-2022-52193
- cvss
- 9.8
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 2.1%
- EPSS 2.1% chance of exploitation in 30 days, percentile 81%
- public exploits
- 0
- none known
Summary
THe WCFM Membership plugin for WordPress is vulnerable to privilege escalation in versions up to, and including 2.10.0, due to a missing capability check on the wp_ajax_nopriv_wcfm_ajax_controller AJAX action that controls membership settings. This makes it possible for unauthenticated attackers to modify the membership registration form in a way that allows them to set the role for registration to that of any user including administrators. Once configured, the attacker can then register as an administrator.
Patch / fix
- wclovers wcfm_membership 2.10.1
CISA SSVC
- Exploitation
- none
- Automatable
- yes
- Technical impact
- total
- Assessed
- 21 mo ago
Exploit prediction
2.10% chance of exploitation in the next 30 days, higher than 81% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| NVD | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
Affected products
- wclovers WCFM Membership – WooCommerce Memberships for Multivendor Marketplace
Classification
- Weakness
-
- CWE-862 Missing Authorization
- Technology feeds
References
Sources
- CVE List CVE-2022-4939
- NVD CVE-2022-4939
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