CVE-2025-11877 User Activity Log <= 2.2 - Unauthenticated Limited Options Update via Failed Login
Unauthenticated attackers can modify site options via failed login attempts, potentially reopening registration or breaking admin access.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-11877?
CVE-2025-11877 is a high-severity missing authorization vulnerability in solwininfotech User Activity Log, published on 7 Jan 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official 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.
Weakness: CWE-862
Which versions are affected by CVE-2025-11877?
How do I fix CVE-2025-11877?
No fix has been published for CVE-2025-11877 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2025-11877 being exploited?
There is no known exploitation of CVE-2025-11877 in the wild and no public exploit code.
Sources
Also known as GHSA-69mj-pc6r-5cgv.