CVE-2023-6855 json
Paid Memberships Pro <= 2.12.5 - Missing Authorization via API
published 2024-01-11 2 y ago modified 2026-06-17 4 mo ago also EUVD-2023-59059
- 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 43%
- public exploits
- 0
- none known
Summary
The Paid Memberships Pro – Content Restriction, User Registration, & Paid Subscriptions plugin for WordPress is vulnerable to unauthorized modification of membership levels created by the plugin due to an incorrectly implemented capability check in the pmpro_rest_api_get_permissions_check function in all versions up to 2.12.5 (inclusive). This makes it possible for unauthenticated attackers to change membership levels including prices.
CISA SSVC
- Exploitation
- none
- Automatable
- yes
- Technical impact
- partial
- Assessed
- 18 mo ago
Exploit prediction
0.51% chance of exploitation in the next 30 days, higher than 43% of all scored CVEs (FIRST EPSS, 2026-11-08).
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:N/I:L/A:N |
| NVD | 3.1 | 5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N |
Affected products
- strangerstudios Paid Memberships Pro – Content Restriction, User Registration, & Paid Subscriptions
Classification
- Weakness
-
- CWE-862 Missing Authorization
- Technology feeds
References
-
wordfence.com
/threat-intel/vulnerabilities/id/383c7837-e7b7-4608-9cdc-91b7dbc7f4e2?source=cve
third-party-advisory
-
plugins.trac.wordpress.org
/browser/paid-memberships-pro/trunk/includes/rest-api.php#L528
issue-tracking
-
plugins.trac.wordpress.org
/browser/paid-memberships-pro/trunk/includes/rest-api.php#L997
issue-tracking
-
plugins.trac.wordpress.org
/changeset/3011575/paid-memberships-pro/trunk/includes/rest-api.php?contextall=1&old=2947813&old_path=%2Fpaid-
issue-tracking
Sources
- CVE List CVE-2023-6855
- NVD CVE-2023-6855
Fencer Vulns 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.