User Activity Log <= 1.6.6 — IP Address Spoofing
CVE-2023-4279Published · Updated Action summary
Affected: ≤1.6.6Update to 1.6.7 or newer
All remediation steps- Severity
- Medium5.3
- CVSS
- 5.3CVSS 3.1 · CNA (Wordfence)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:NWhat does this vector mean?
AV:NAttack vector- Network
AC:LAttack complexity- Low
PR:NPrivileges required- None
UI:NUser interaction- None
S:UScope- Unchanged
C:NConfidentiality- None
I:LIntegrity- Low
A:NAvailability- None
- Required access
- No account needed
- Exploit prediction (EPSS)
- No score
- CISA KEV
- Not listed
On this page8
Am I affected?
User Activity Log user-activity-log
- Affected≤ 1.6.6
- Patched in1.6.7
Update to 1.6.7 or newer.
You are affected if you run ≤ 1.6.6. Version 1.6.7 and later are not affected by this issue.
- 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
- Update to version 1.6.7, or a newer patched version
- Rotate administrator passwords and application secrets if the site ran a vulnerable version while publicly reachable.
- Watch User Activity Log to get an email when the next vulnerability is published.
Advisory
Source description from Wordfence Intelligence, credited to Bartłomiej Marek, Tomasz Swiadek.
The User Activity Log plugin for WordPress is vulnerable to IP Address Spoofing in versions up to and including 1.6.6. This is due to insufficient restrictions on where the IP Address information is being retrieved for request logging. Attackers can supplied the X-Forwarded-For header with with a different IP Address that will be logged.
Exploits & references
Proof-of-concept & detection
No public proof-of-concept or detection template is known for this vulnerability.
Advisories & patches
- Advisorywordfence.com
Related CVEs
More in User Activity Log
All 11| Severity | Vulnerability | CVE | Published |
|---|---|---|---|
| High7.5 | Unauthenticated Limited Options Update via Failed Login ≤2.2No patch available | CVE-2025-11877 | |
| Medium5.3 | Unauthenticated Limited Arbitrary Option Update ≤2.2No patch available | CVE-2025-13471 | |
| Critical9.1 | Authenticated (Administrator+) SQL Injection ≤1.9Update to 2.0 | CVE-2024-31356 | |
| High7.5 | Unauthenticated Data Export to Sensitive Information Disclosure ≤1.6.5Update to 1.6.6 | CVE-2023-4269 | |
| High7.5 | Unauthenticated SQL Injection ≤1.6.4Update to 1.6.5 | CVE-2023-3435 |
- High7.5Unauthenticated Limited Options Update via Failed Login
≤2.2No patch available
- Medium5.3Unauthenticated Limited Arbitrary Option Update
≤2.2No patch available
- Critical9.1Authenticated (Administrator+) SQL Injection
≤1.9Update to 2.0
- High7.5Unauthenticated Data Export to Sensitive Information Disclosure
≤1.6.5Update to 1.6.6
- High7.5Unauthenticated SQL Injection
≤1.6.4Update to 1.6.5
Timeline
CVE published
Severity medium, CVSS 5.3
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.