WP Activity Log <= 5.6.1 - Unauthenticated Stored Cross-Site Scripting

Summary

The WP Activity Log plugin for WordPress is vulnerable to Stored Cross-Site Scripting in all versions up to, and including, 5.6.1 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

Remediation

1. Inventory every melapress WP Activity Log deployment, including staging.
2. No fixed version appears in the public sources yet. Check the references below and the vendor directly.

References

• Referencehttps://plugins.trac.wordpress.org/changeset?reponame=&old=3496481%40wp-security-audit-log&new=3496481%40wp-security-audit-log
• Referencehttps://research.cleantalk.org/CVE-2026-120075
• Referencehttps://www.wordfence.com/threat-intel/vulnerabilities/id/c201b563-1195-45b8-adf9-c8aeccb8ce0e?source=cve