Shortcode Execution Vulnerability in Ninja Tables by WPDeveloper
CVE-2026-86612

5.6MEDIUM

Key Information:

Vendor

WordPress
Status
Ninja Tables
Vendor
CVE Published:
23 September 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-86612?

The Ninja Tables plugin for WordPress, prior to version 5.2.17, suffers from an improper access control vulnerability that allows unauthorized users to execute arbitrary shortcodes on public pages. This issue arises when the plugin fails to restrict shortcode functioning to only administrator-authored table rows. As a result, without proper configurations, unauthenticated users can submit regular form entries that trigger unintended shortcode execution, potentially leading to the permanent alteration or corruption of publicly accessible pages.

Affected Version(s)

Ninja Tables 0 < 5.2.17

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-86612 - Proof of Concept

References

https://wpscan.com/vulnerability/4be7a5e0-9657-4692-904d-...
exploitvdb-entrytechnical-description

CVSS V3.1

Score:
5.6
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
High
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Jakub Herman
WPScan
.