CVE-2026-54806: WordPress WP Activity Log plugin <= 5.6.3.1 - PHP Object Injection vulnerability Unauthenticated PHP Object Injection in WP Activity Log <= 5.6.3.1 versions.

critical9.8CVSS 3.1

AVNACLPRNUINSUCHIHAH

EPSS

0.70%

51.3th percentile

WordPress WP Activity Log plugin <= 5.6.3.1 - PHP Object Injection vulnerability Unauthenticated PHP Object Injection in WP Activity Log <= 5.6.3.1 versions.

Affected

1 ranges

Vendor	Product	Version range	Fixed in
melapress	wp_activity_log	n/a – 5.6.3.1	—

Stop checking back — get the weekly exploitation signal.

Every Monday: what got weaponized or added to CISA KEV in the last seven days — each CVE cross-linked to its PoC, Nuclei template, and detection rule. Free, one email a week, unsubscribe in one click.