User Activity <= 1.0.1 — IP Address Spoofing

Am I affected?

• Check your version: in wp-admin go to Plugins → Installed Plugins and read the version under User Activity.
• 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 to get an email when the next vulnerability is published.

Advisory

Source description from Wordfence Intelligence, credited to rezaduty.

The User Activity plugin for WordPress is vulnerable to IP Address Spoofing in versions up to and including 1.0.1. 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

Timeline

1. Feb 3, 2023

   CVE published

   Severity medium, CVSS 5.3

2. Nov 13, 2026

   Record last updated