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

> Attackers can execute code and gain admin access via a backdoor in a tampered Ninja Tables Pro plugin build distributed through a compromised update server.

- **Severity:** Critical 9.3 (`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`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 13 Aug 2026
- **Updated:** 17 Aug 2026
- **Also known as:** GHSA-7wc4-82pm-hqcg

## What is CVE-2026-73533?

CVE-2026-73533 is a critical vulnerability in WPManageNinja Ninja Tables Pro, published on 13 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official 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: CWE-506 (Embedded Malicious Code)

## Which versions are affected by CVE-2026-73533?


## How do I fix CVE-2026-73533?

No fix has been published for CVE-2026-73533 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-73533 being exploited?

There is no known exploitation of CVE-2026-73533 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-73533 and fix it if it is affected.

What it is: CVE-2026-73533 is a critical vulnerability in WPManageNinja Ninja Tables Pro, published on 13 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2026-73533 in the wild and no public exploit code.

Affected product: WPManageNinja Ninja Tables Pro. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2026-73533/ (Markdown: https://insights.sbomify.com/CVE-2026-73533/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-73533
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-73533
- OSV: https://osv.dev/vulnerability/CVE-2026-73533

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-73533/
Summaries are generated and may contain mistakes; the official description above is the record.