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Vulnerabilities

CVE-2026-4160

Medium
CWE-639 — Weakness Type
Published: Apr 16, 2026  ·  Modified: Apr 19, 2026  ·  Source: NVD
CVSS v3
5.3
🔗 NVD Official
📄 Description (English)

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").

🤖 AI Executive Summary

The Fluent Forms WordPress plugin versions up to 6.1.21 contain an Insecure Direct Object Reference vulnerability in the Stripe SCA confirmation endpoint that allows unauthenticated attackers to modify payment statuses of pending submissions. Attackers can change submission payment status to 'failed' without proper authorization or ownership validation.

📄 Description (Arabic)

يحتوي مكون Fluent Forms للـ WordPress على ثغرة Insecure Direct Object Reference في نقطة نهاية تأكيد Stripe SCA التي تسمح للمهاجمين غير المصرح لهم بتعديل حالات الدفع للطلبات المعلقة. تفتقد نقطة النهاية إلى التحقق من التفويض والملكية على معامل submission_id الذي يتحكم فيه المستخدم.

🤖 ملخص تنفيذي (AI)

The Fluent Forms WordPress plugin versions up to 6.1.21 contain an Insecure Direct Object Reference vulnerability in the Stripe SCA confirmation endpoint that allows unauthenticated attackers to modify payment statuses of pending submissions. Attackers can change submission payment status to 'failed' without proper authorization or ownership validation.

🤖 AI Intelligence Analysis Analyzed: May 30, 2026 03:48
🇸🇦 Saudi Arabia Impact Assessment
Saudi Relevance: high
🏢 Affected Saudi Sectors
banking telecom government healthcare
🎯 MITRE ATT&CK Techniques
⚖️ Saudi Risk Score (AI)
6.0
/ 10.0
🔧 Remediation Steps (English)
Update Fluent Forms plugin to version 6.1.22 or later immediately. Implement proper authorization checks and ownership validation on the submission_id parameter in the Stripe SCA confirmation AJAX endpoint. Review and audit all payment-related endpoints for similar authorization bypass vulnerabilities.
🔧 خطوات المعالجة (العربية)
قم بتحديث مكون Fluent Forms إلى الإصدار 6.1.22 أو أحدث فوراً. قم بتنفيذ فحوصات التفويض المناسبة والتحقق من ملكية معرف الطلب في نقطة نهاية AJAX لتأكيد Stripe SCA. قم بمراجعة وتدقيق جميع نقاط النهاية المتعلقة بالدفع للبحث عن ثغرات تجاوز التفويض المماثلة.
📋 Regulatory Compliance Mapping
🟢 NCA ECC 2024
5.1.1 5.1.2
🔵 SAMA CSF
AC-2 AC-3
🟡 ISO 27001:2022
A.9.2.1 A.9.4.3
📊 CVSS Score
5.3
/ 10.0 — Medium
📊 CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Attack VectorN — None / Network
Attack ComplexityL — Low / Local
Privileges RequiredN — None / Network
User InteractionN — None / Network
ScopeU — Unchanged
ConfidentialityN — None / Network
IntegrityL — Low / Local
AvailabilityN — None / Network
📋 Quick Facts
Severity Medium
CVSS Score5.3
CWECWE-639
EPSS0.04%
Exploit No
Patch ✗ No
Published 2026-04-16
Source Feed nvd
Views 4
🇸🇦 Saudi Risk Score
6.0
/ 10.0 — Saudi Risk
Priority: MEDIUM
🏷️ Tags
CWE-639
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