CVE-2023-6855

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    CVE-2023-6855

    Published: 11 Jan 2024Last Modified: 12 Aug 2026

    Summary: Paid Memberships Pro <= 2.12.5 - Missing Authorization via API

    Details: 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.

    References: https://plugins.trac.wordpress.org/browser/paid-memberships-pro/trunk/includes/rest-api.php#L528, https://plugins.trac.wordpress.org/browser/paid-memberships-pro/trunk/includes/rest-api.php#L997, 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, https://www.wordfence.com/threat-intel/vulnerabilities/id/383c7837-e7b7-4608-9cdc-91b7dbc7f4e2?source=cve, https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/6xxx/CVE-2023-6855.json, https://nvd.nist.gov/vuln/detail/CVE-2023-6855

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 0
    Fixed -None

    Affected versions

    2.12.5
    2.12.4
    2.12.3
    2.12.2
    2.12.1
    2.12

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    CVE-2023-6855 | CVE-DB