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

CVE-2025-11877Published · Updated

Action summary

Affected: ≤2.2No patch available

What to do until a fix ships
Severity
High7.5
CVSS
7.5
CVSS 3.1 · CNA (Wordfence)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
What does this vector mean?
AV:N Attack vector
Network
AC:L Attack complexity
Low
PR:N Privileges required
None
UI:N User interaction
None
S:U Scope
Unchanged
C:N Confidentiality
None
I:H Integrity
High
A:N Availability
None
Weakness
CWE-862 Missing Authorization
Required access
No account needed
Exploit prediction (EPSS)
No score
CISA KEV
Not listed

Am I affected?

User Activity Log user-activity-log

  1. Affected≤ 2.2
  2. PatchedNo fix yet

No patched version available.

You are affected if you run ≤ 2.2. No fixed version has been released.

  • Check your version: in wp-admin go to Plugins → Installed Plugins and read the version under User Activity Log.
  • No admin access? Run a passive check of your site. It reads public files only.
  • No account is needed to exploit this. Treat any exposed site on an affected version as at risk.

What to do

  1. No known patch available. Please review the vulnerability's details in depth and employ mitigations based on your organization's risk tolerance. It may be best to uninstall the affected software and find a replacement.
  2. Rotate administrator passwords and application secrets if the site ran a vulnerable version while publicly reachable.
  3. Watch User Activity Log to get an email when the next vulnerability is published.

Advisory

Source description from Wordfence Intelligence, credited to shark3y.

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.

Exploits & references

Proof-of-concept & detection

No public proof-of-concept or detection template is known for this vulnerability.

Advisories & patches

More in User Activity Log

All 11
More vulnerabilities in User Activity Log
SeverityVulnerabilityCVEPublished
Medium5.3Unauthenticated Limited Arbitrary Option Update
≤2.2No patch available
CVE-2025-13471
Critical9.1Authenticated (Administrator+) SQL Injection
≤1.9Update to 2.0
CVE-2024-31356
Medium5.3IP Address Spoofing
≤1.6.6Update to 1.6.7
CVE-2023-4279
High7.5Unauthenticated Data Export to Sensitive Information Disclosure
≤1.6.5Update to 1.6.6
CVE-2023-4269
High7.5Unauthenticated SQL Injection
≤1.6.4Update to 1.6.5
CVE-2023-3435

Same weakness (Missing Authorization)

All Missing Authorization
Other Missing Authorization vulnerabilities
SeverityVulnerabilityCVEPublished
High7.2Unauthenticated Stored Cross-Site Scripting via Comment User-Agent HeaderCVE-2026-120688
Critical9.8Unauthenticated Arbitrary File Upload via File Upload via Public Form SubmissionCVE-2026-125055
Critical9.8Unauthenticated PHP Object Injection to Remote Code Execution via 'form' ParameterCVE-2026-119077
Medium5.3Unauthenticated Sensitive Information Exposure in 'search' Parameter
Customer Reviews for WooCommerce≤5.127.0Update to 5.128.0
CVE-2026-121518

Timeline

  1. CVE published

    Severity high, CVSS 7.5

  2. Record last updated

Sources & licenses

Wordfence record
Vulnerability data
Wordfence Intelligence. [object Object] Licensed under the CC BY-SA 4.0.
CVE® identifiers
[object Object]. Used under the CVE Program. CVE® is a registered trademark of The MITRE Corporation.
CVSS / CWE
National Vulnerability Database (NVD), shown unmodified. This product uses the NVD API but is not endorsed or certified by the NVD.
VulnCrest content
Summary, remediation guidance and page layout © VulnCrest. Not sourced from NVD.

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