CVE-2026-54806 PUBLISHED

WordPress WP Activity Log plugin <= 5.6.3.1 - PHP Object Injection vulnerability

Assigner: Patchstack
Reserved: 16.06.2026 Published: 17.06.2026 Updated: 17.06.2026

Unauthenticated PHP Object Injection in WP Activity Log <= 5.6.3.1 versions.

Metrics

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS Score: 9.8

Product Status

Vendor Melapress
Product WP Activity Log
Versions Default: unaffected
  • affected from n/a to 5.6.3.1 (incl.)

Solutions

Update the WordPress WP Activity Log Plugin to the latest available version (at least 5.6.4).

Credits

  • daroo | Patchstack Bug Bounty Program finder

References

Problem Types

  • CWE-502 Deserialization of Untrusted Data CWE

Impacts

  • CAPEC-586 Object Injection