The User Activity Log WordPress plugin through 2.2 does not properly handle failed login attempts in some cases, allowing unauthenticated users to set arbitrary options to 1 (for example to enable User Registration when it has been turned off)
Conclusion & alert: CVE-2025-13471 is rated Low Risk (21.4/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.01%).Mandatory action: Monitor for updates and reassess as exploit intelligence or EPSS changes.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
Exploit prediction scoring system (EPSS) score for CVE-2025-13471
EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).