The Nextend Social Login Pro plugin for WordPress is vulnerable to authentication bypass in versions up to, and including, 3.1.16. This is due to insufficient verification on the user being supplied during the Apple OAuth authenticate request through the plugin. This makes it possible for unauthenticated attackers to log in as any existing user on the site, such as an administrator, if they have access to the email.
CVE ID: CVE-2025-1061
CVSS Base Severity: CRITICAL
CVSS Base Score: 9.8
CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Vendor: nextendweb
Product: Nextend Social Login Pro
EPSS Score: 0.06% (probability of being exploited)
EPSS Percentile: 30.52% (scored less or equal to compared to others)
EPSS Date: 2025-03-08 (when was this score calculated)