Fluent Forms Pro 6.2.7 & Ninja Tables Pro 5.2.13 - Remote Code Execution via Backdoor

2026-08-03 00:00
Anonymous

Strategic Overview

Status
Patched in 6.2.8
Affected Plugin
Fluent Forms Pro Add On Pack
Affected Version
6.2.7
CVSS
9.8Critical
Weakness type
CWE-506 · Embedded Malicious Code
CVE
CVE pending
View all Fluent Forms Pro Add On Pack vulnerabilities

At a glance

This record tracks a critical-severity Embedded Malicious Code vulnerability in the Fluent Forms Pro Add On Pack WordPress plugin, affecting versions 6.2.7. It carries a CVSS score of 9.8 (reachable over the network; low attack complexity; high confidentiality, integrity, availability impact). Exploitation requires no authentication. The issue is fixed in version 6.2.8; sites on affected versions should update now. Disclosed August 2026.

Vulnerability Overview

The Fluent Forms Pro in version 6.2.7 and the Ninja Tables Pro in version 5.2.13 plugins for WordPress are vulnerable to Remote Code Execution via Backdoor. This is due to threat actors compromised the vendor's system and embedded a backdoor into the plugin's code. This makes it possible for unauthenticated attackers to execute code on the server.

Technical Analysis

The vector marks this flaw as remotely reachable over the network, with low attack complexity — no special timing or configuration is needed, and no privileges on the target site, and no interaction from a victim user. A successful exploit has high impact on confidentiality, integrity, availability — full site compromise territory.

CWE-506: Embedded Malicious Code

Reaching this weakness in Fluent Forms Pro Add On Pack 6.2.7 takes a caller who can reach the endpoint. Embedded malicious code means functionality was deliberately placed in the software to act against the site owner's interest, rather than being an accidental defect.

Removing the software is not enough on its own — anything it created or modified while active has to be audited too. For Fluent Forms Pro Add On Pack the fix is 6.2.8: builds 6.2.7 are affected, anything from 6.2.8 onward is not.

Remediation

Update to version 6.2.8, or a newer patched version

How does WordSec protect against this?

Classes like this one can leave something behind, so the staged malware scanner is the second half: it looks for dropped files and modified code rather than for the request that created them. None of that substitutes for the fix: Fluent Forms Pro Add On Pack 6.2.8 closes this, and updating the plugin is the step that ends it.

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External References

https://www.wordfence.com/threat-intel/vulnerabilities/id/c6ee9437-a12a-476b-9a4b-8da8d9fbfeb3

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