---
id: CVE-2026-73533
title: >-
  Ninja Tables Pro 5.2.11 contains an embedded malicious code vulnerability
  introduced via a tampered plugin build served through a decommissioned update
  server
summary: >-
  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/NinjaTabl…
severity: critical
cvss: 9.8
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'
cwe:
  - CWE-506
vendor: WPManageNinja
product: Ninja Tables Pro
affected:
  - ninja_tables_pro 5.2.11
published: '2026-08-13'
updated: '2026-09-09'
sourceUpdated: '2026-09-09T20:35:08.537'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-73533'
references:
  - url: 'https://wordpress.org/plugins/ninja-tables/'
    label: disclosure@vulncheck.com
  - url: 'https://wpmanageninja.com/security-incident-on-31-july-2026/'
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/ninja-tables-pro-embedded-malicious-code-via-tampered-plugin-build
    label: disclosure@vulncheck.com
tags:
  - nvd
  - cve.org
ssvc:
  exploitation: none
  automatable: 'yes'
  technicalImpact: total
  timestamp: '2026-08-17T15:07:55.305156Z'
ingestedAt: '2026-09-13T14:44:22.926Z'
epss: 0.00649
epssPercentile: 0.48884
---

## Overview

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.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.