CVE-2026-78279

Fluent Support Pro <= 2.3.1 - Cross-Site Request Forgery

2026-08-24 00:00
Ananda Dhakal

Strategic Overview

Status
Patched in 2.3.2
Affected Plugin
Fluent Support Pro
Affected Version
<= 2.3.1
CVSS
4.3Medium
Weakness type
CWE-352 · Cross-Site Request Forgery (CSRF)
CVE
CVE-2026-78279
View all Fluent Support Pro vulnerabilities

At a glance

CVE-2026-78279 is a medium-severity Cross-Site Request Forgery (CSRF) vulnerability in the Fluent Support Pro WordPress plugin, affecting versions <= 2.3.1. It carries a CVSS score of 4.3 (reachable over the network; low attack complexity). Exploitation requires no authentication. The issue is fixed in version 2.3.2; sites on affected versions should update now. Disclosed August 2026, reported by Ananda Dhakal.

Vulnerability Overview

The Fluent Support Pro plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 2.3.1. This is due to missing or incorrect nonce validation on a function. This makes it possible for unauthenticated attackers to perform an unauthorized action granted they can trick a site administrator into performing an action such as clicking on a link.

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.

CWE-352: Cross-Site Request Forgery (CSRF)

Reaching this weakness in Fluent Support Pro <= 2.3.1 takes a caller who can reach the endpoint. Cross-site request forgery abuses the fact that browsers attach a victim's cookies to any request, so a state-changing action that only checks who you are, not whether you meant to act, can be triggered from another site.

An attacker who gets a logged-in user to load a crafted page can perform that action as them, with the impact scaling to whatever the victim's role is allowed to do. For Fluent Support Pro the fix is 2.3.2: builds <= 2.3.1 are affected, anything from 2.3.2 onward is not.

Remediation

Update to version 2.3.2, or a newer patched version

How does WordSec protect against this?

The attempt arrives as an ordinary request to Fluent Support Pro: WordSec's web application firewall inspects request payloads before WordPress loads them. None of that substitutes for the fix: Fluent Support Pro 2.3.2 closes this, and updating the plugin is the step that ends it.

  • Firewall
  • Alerts

External References

Related records

Vulnerability data © Defiant, Inc., provided under the Wordfence Intelligence T&C