Critical (9.8) in userproplugin userpro. EPSS 27% chance of exploitation in the next 30 days.
The UserPro plugin before 4.9.17.1 for WordPress, when used on a site with the "admin" username, allows remote attackers to bypass authentication and obtain administrative access via a "true" value for the up_auto_log parameter in the QUERY_STRING to the default URI.
Severity
CVSS 3.0
9.8 critical
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS
27% chance of exploitation in the next 30 days; higher than 98% of CVEs (scores of 2026-10-31)