by Kastro
Paper/Archive/CVE-2026-73533

CVE-2026-73533

WPManageNinja Ninja Tables Pro — Ninja Tables Pro 5.2.11 Embedded Malicious Code via Tampered Plugin Build

EPSS 0.6%CVSS 9.8
critical.is priorityof 100
40
CVSS 9.8 (CNA)9.8 / 10 × 3029.4Not in CISA KEV+300.0EPSS percentile 51.1.511 × 2010.2No public exploit+100.0SSVC exploitation: none+100.0
Description · from the CVE record

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

ProductAffectedFixed inSource
Ninja Tables Pro5.2.11–CNA

Scores by source

VulnCheck (CNA)9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
VulnCheck (CNA)9.3CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
CISA ADPSSVCExploitation: none · Automatable: yes · Technical impact: total

References

writeupwpmanageninja.com/security-incident-on-31-july-2026refwordpress.org/plugins/ninja-tableswriteupvulncheck.com/advisories/ninja-tables-pro-embedded-malicious-code-via-tampered-plugin-build