Auth bypass in Solwininfotech User Activity Log
CVE-2025-11877
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.
Vulnerability class: Broken Access Control
EPSS: 0.003 (26.1th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N.
Affected products
- Solwininfotech User Activity Log — versions 0
Weakness classification (CWE)
References
Frequently asked questions
- What is CVE-2025-11877?
- CVE-2025-11877 is a high-severity vulnerability in Solwininfotech User Activity Log, classified under Missing Authorization. CVSS score: 7.5/10. Published 2026-01-07.
- How severe is CVE-2025-11877?
- High severity. CVSS v3 base score is 7.5 out of 10.