Critical (9.8). EPSS 0.6% chance of exploitation in the next 30 days.
The SetSail Membership plugin for WordPress is vulnerable to in all versions up to, and including, 1.0.3. This is due to the plugin not properly verifying a users identity through the social login. This makes it possible for unauthenticated attackers to log in as any user, including administrators and take over access to their account.
Severity
CVSS 3.1
9.8 critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS
0.6% chance of exploitation in the next 30 days; higher than 46% of CVEs (scores of 2026-10-31)