CVE-2025-11877Public exploitNetwork attack vector

Unauthenticated option changes via failed-login handler

Published Jan 7, 2026 · Updated Jan 7, 2026

Missing authorization in Solwin Infotech User Activity Log 2.2 and earlier allows remote attackers to alter site options via failed logins. The ual_shook_wp_login_failed handler passes failed usernames to update_option() without a capability check, changing selected zero-valued options to nonzero values. No account is required; attackers can reopen registration or corrupt wp_user_roles and block wp-admin access.

CVSS severity7.5
High
EPSS probability0.37%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Missing authorization in Solwin Infotech User Activity Log 2.2 and earlier allows remote attackers to alter site options via failed logins. The ual_shook_wp_login_failed handler passes failed usernames to update_option() without a capability check, changing selected zero-valued options to nonzero values. No account is required; attackers can reopen registration or corrupt wp_user_roles and block wp-admin access.

The record

CVE
CVE-2025-11877
Published
Jan 7, 2026
Updated
Jan 7, 2026
Vendor
Solwin Infotech
Product
User Activity Log
Classifications
CWE-862, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 7, 2026CVE publishedPublication date reported by the CVE source.
  2. Jan 7, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=* <=2.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Solwin Infotech · User Activity Logversion=* <=2.2

Published CVSS scores

7.5WordfenceCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-862Missing Authorization
T1190Exploit Public-Facing Application

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo