AUGUST 4, 2026
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Case File

CVE-2026-4160

MEDIUM · CVSS 5.3 EPSS 0.30%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2026-04-16 · Last synced 2026-08-04

CyberRota Analysis

This is a medium severity vulnerability with a CVSS score of 5.3. It affects WordPress. Exploitation may require the attacker to be authenticated.

CVE
CVE-2026-4160
Severity
MEDIUM
CVSS
5.3
EPSS
0.30%
WordPress

Original NVD Description

The Fluent Forms – Customizable Contact Forms, Survey, Quiz, & Conversational Form Builder plugin for WordPress is vulnerable to Insecure Direct Object Reference via the 'submission_id' parameter in versions up to, and including, 6.1.21. This is due to missing authorization and ownership validation on a user controlled key in the Stripe SCA confirmation AJAX endpoint. This makes it possible for unauthenticated attackers to modify payment status of targeted pending submissions (for example, setting the status to "failed").