CVE-2026-73533: Wpmanageninja Ninja Tables Pro

Critical severity, CVSS 9.8. EPSS: 0.6% chance of exploitation in the next 30 days.

Ninja Tables Pro 5.2.11 contains an embedded malicious code vulnerability introduced via a tampered plugin build served through a decommissioned update server. The tampered build introduced a rogue PHP file (app/Library/updater/NinjaTableDataSync.php) that established a backdoor REST API endpoint, dropped persistent PHP files in mu-plugins and uploads directories, installed a passwordless administrator account, and registered scheduled tasks that survived plugin removal.

Affected products

Published 2026-08-13. Last modified 2026-09-09.