Vulnerability · Published Dec 6, 2025 · Assigned by Wordfence
CVE-2025-13748Fluent Forms <= 6.1.7 - Unauthenticated Insecure Direct Object Reference to Payment Status Tampering via submission_id
Medium 5.3
In plain English
A medium-severity authorization bypass via user-controlled key in Fluent Forms – Customizable Contact Forms, Survey, Quiz, & Conversational Form Builder from techjewel. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 23% of all known vulnerabilities).
Official description
The Fluent Forms – Customizable Contact Forms, Survey, Quiz, & Conversational Form Builder plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 6.1.7 via the 'submission_id' parameter due to missing validation on a user controlled key within the confirmScaPayment() function. This makes it possible for unauthenticated attackers to mark arbitrary submissions as failed via crafted requests to the endpoint granted they can guess or enumerate a valid submission identifier.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| techjewel | Fluent Forms – Customizable Contact Forms, Survey, Quiz, & Conversational Form Builder | 0 – through 6.1.7 |
Weakness: CWE-639 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N