WPCOM Member <= 1.5.2.1 - Unauthenticated Privilege Escalation via User Meta
28Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 9.8epss 0.6%
exploitation probability
0.6%top 55% of all CVEs
observed exploitation
nono source reports it
The WPCOM Member plugin for WordPress is vulnerable to privilege escalation in all versions up to, and including, 1.5.2.1. This is due to the plugin allowing arbitrary data to be passed to wp_insert_user() during registration. This makes it possible for unauthenticated attackers to update their role to that of an administrator during registration.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected products
whyun · WPCOM MemberReferences
https://plugins.trac.wordpress.org/browser/wpcom-member/tags/1.5.2/includes/form-validation.php#L267https://plugins.trac.wordpress.org/changeset/3147399/wpcom-member/trunk/includes/form-validation.phphttps://www.wordfence.com/threat-intel/vulnerabilities/id/ec7f3e0c-a07c-4082-9b6b-12d0fbe0fdc8?source=cve