🔐 CVE Alert

CVE-2026-54806

CRITICAL 9.8

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

CVSS Score
9.8
EPSS Score
0.0%
EPSS Percentile
0th

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

CWE CWE-502
Vendor melapress
Product wp activity log
Published Jun 17, 2026
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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

Affected Versions

Melapress / WP Activity Log
n/a ≤ 5.6.3.1

References

NVD ↗ CVE.org ↗ EPSS Data ↗
patchstack.com: https://patchstack.com/database/wordpress/plugin/wp-security-audit-log/vulnerability/wordpress-wp-activity-log-plugin-5-6-3-1-php-object-injection-vulnerability?_s_id=cve

Credits

daroo | Patchstack Bug Bounty Program