VULNERABILITY INTELLIGENCE
CVE-2026-73533
CVSS score9.8 CRITICAL
EPSS probability0.65%
CISA KEVNot currently listed
Published2026-08-13
Last modified2026-09-09
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Description
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.
Weakness classification
- disclosure@vulncheck.com: CWE-506