CVE-2023-6855: paid memberships Auth Bypass (CVSS 5.3)

Description

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.

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CVSS v3.1 Score

5.3

MEDIUM

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

Weakness Type (CWE)

CWE-862 Missing Authorization

Affected Products

Vendor	Product	Versions
strangerstudios	paid_memberships_pro	< 2.12.5

References

Other 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://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

Frequently Asked Questions

What is CVE-2023-6855? +

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. It has a CVSS v3.1 base score of 5.3 (MEDIUM).

How severe is CVE-2023-6855? +

CVE-2023-6855 has a CVSS v3.1 score of 5.3 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

What products are affected by CVE-2023-6855? +

CVE-2023-6855 affects products from strangerstudios, specifically: paid_memberships_pro. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2023-6855? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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