CVE-2023-6855

MEDIUM 5.3

Paid Memberships Pro <= 2.12.5 - Missing Authorization via API

CVSS Score

5.3

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-862
Vendor	strangerstudios
Product	paid memberships pro – content restriction, user registration, & paid subscriptions
Published	Jan 11, 2024
Last Updated	Apr 8, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Scope

Confidentiality

Integrity

Availability

Affected Versions

strangerstudios / Paid Memberships Pro – Content Restriction, User Registration, & Paid Subscriptions

0 ≤ 2.12.5

References

NVD ↗ CVE.org ↗ EPSS Data ↗

wordfence.com: https://www.wordfence.com/threat-intel/vulnerabilities/id/383c7837-e7b7-4608-9cdc-91b7dbc7f4e2?source=cve plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/paid-memberships-pro/trunk/includes/rest-api.php#L528 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/paid-memberships-pro/trunk/includes/rest-api.php#L997 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/changeset/3011575/paid-memberships-pro/trunk/includes/rest-api.php?contextall=1&old=2947813&old_path=%2Fpaid-memberships-pro%2Ftrunk%2Fincludes%2Frest-api.php

Credits

Craig Smith