---
cve: "CVE-2026-73533"
severity: "CRITICAL"
cvss: 9.3
epss: "0.6%"
vendor: "wpmanageninja"
kev: false
exploited: false
published: "2026-08-13 16:19:05"
tags: [cve, security, critical]
source: tsecurity.de CVE-Dossier
exported: "2026-10-10T15:16:25+02:00"
---

# CVE-2026-73533

> 9.3 CRITICAL

## Beschreibung

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.

## CISA-Anreicherung (vulnrichment/ADP)

- CISA-SSVC (Coordinator, v2.0.3):
  - Exploitation: **none**
  - Automatable: **yes**
  - Technical Impact: **total**

## CVSS-Vektor

```
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
```

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Netzwerk | bad |
| AC Komplexität | Gering | bad |
| PR Privilegien | Keine | bad |
| UI Interaktion | Keine | bad |

## Referenzen

- <https://wpmanageninja.com/security-incident-on-31-july-2026/>
- <https://wordpress.org/plugins/ninja-tables/>
- <https://www.vulncheck.com/advisories/ninja-tables-pro-embedded-malicious-code-via-tampered-plugin-build>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/sicherheitsluecken/cve-2026-73533/) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI WID (CSAF)_