User Activity Log <= 1.6.6 - IP Address Spoofing

Use of Less Trusted Source
CVE CVE-2023-4279
CVSS 5.3 (Medium)
Publicly Published August 14, 2023
Last Updated August 21, 2023
Researchers 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.



1 affected software package

Software Type Plugin
Software Slug user-activity-log (view on
Patched? Yes
Remediation Update to version 1.6.7, or a newer patched version
Affected Version
  • <= 1.6.6
Patched Version
  • 1.6.7

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