Insecure Direct Object Reference in Fluent Forms Plugin for WordPress
CVE-2025-13748

5.3MEDIUM

Key Information:

Vendor

WordPress
Status
Fluent Forms – Customizable Contact Forms, Survey, Quiz, & Conversational Form Builder
Vendor
CVE Published:
6 December 2025

What is CVE-2025-13748?

The Fluent Forms plugin used in WordPress is susceptible to an Insecure Direct Object Reference vulnerability that affects all versions prior to 6.1.8. This issue stems from insufficient validation of the 'submission_id' parameter within the confirmScaPayment() function. Unauthenticated attackers can exploit this flaw to manipulate the status of any submission by sending crafted requests to the endpoint, making it possible to falsely mark submissions as failed by simply guessing or enumerating valid submission identifiers.

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Deploy the Patch

Affected Version(s)

Fluent Forms – Customizable Contact Forms, Survey, Quiz, & Conversational Form Builder * <= 6.1.7

References

https://www.wordfence.com/threat-intel/vulnerabilities/id...
https://plugins.trac.wordpress.org/changeset/3406804/flue...

CVSS V3.1

Score:
5.3
Severity:
MEDIUM
Confidentiality:
None
Integrity:
Low
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Md. Moniruzzaman Prodhan
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