User Activity Log <= 2.2 - Unauthenticated Limited Options Update via Failed Login

Missing Authorization
CVE CVE-2025-11877
CVSS High (7.5)
Publicly Published January 6, 2026
Last Updated February 3, 2026
Researcher shark3y
Description

The User Activity Log plugin is vulnerable to a limited options update in versions up to, and including, 2.2. The failed-login handler 'ual_shook_wp_login_failed' lacks a capability check and writes failed usernames directly into update_option() calls. This makes it possible for unauthenticated attackers to push select site options from 0 to a non-zero value, allowing them to reopen registration or corrupt options like 'wp_user_roles', breaking wp-admin access. CVE-2025-13471 appears to be a duplicate of this CVE.

References

1 affected software package

Software Type Plugin
Software Slug user-activity-log (view on wordpress.org)
Patched? No
Affected Version
  • <= 2.2
Patched Version
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