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Global vulnerability → Mobile Devices / Consumer Electronics HIGH 8h Global ransomware → Multiple sectors CRITICAL 8h Global malware → Networking / Infrastructure CRITICAL 9h Global ransomware → Information Technology, Virtualization Infrastructure CRITICAL 10h Global supply_chain → Software Development and DevOps CRITICAL 11h Global supply_chain → Software Development and Technology CRITICAL 11h Global apt → Multiple sectors HIGH 13h Global general → Digital Content & Intellectual Property MEDIUM 14h Global malware → Technology and Software Development CRITICAL 14h Global ddos → Technology and Social Media HIGH 14h Global vulnerability → Mobile Devices / Consumer Electronics HIGH 8h Global ransomware → Multiple sectors CRITICAL 8h Global malware → Networking / Infrastructure CRITICAL 9h Global ransomware → Information Technology, Virtualization Infrastructure CRITICAL 10h Global supply_chain → Software Development and DevOps CRITICAL 11h Global supply_chain → Software Development and Technology CRITICAL 11h Global apt → Multiple sectors HIGH 13h Global general → Digital Content & Intellectual Property MEDIUM 14h Global malware → Technology and Software Development CRITICAL 14h Global ddos → Technology and Social Media HIGH 14h Global vulnerability → Mobile Devices / Consumer Electronics HIGH 8h Global ransomware → Multiple sectors CRITICAL 8h Global malware → Networking / Infrastructure CRITICAL 9h Global ransomware → Information Technology, Virtualization Infrastructure CRITICAL 10h Global supply_chain → Software Development and DevOps CRITICAL 11h Global supply_chain → Software Development and Technology CRITICAL 11h Global apt → Multiple sectors HIGH 13h Global general → Digital Content & Intellectual Property MEDIUM 14h Global malware → Technology and Software Development CRITICAL 14h Global ddos → Technology and Social Media HIGH 14h

Vulnerabilities ›

CVE-2026-2428

High

The Fluent Forms Pro Add On Pack plugin for WordPress is vulnerable to Insufficient Verification of Data Authenticity in all versions up to, and including, 6.1.17. This is due to the PayPal IPN (Insta

CWE-345 — Weakness Type

                    Published: Feb 27, 2026                      ·  Modified: Feb 28, 2026                      ·  Source: NVD                

CVSS v3

7.5

🔗 NVD Official

📄 Description (English)

The Fluent Forms Pro Add On Pack plugin for WordPress is vulnerable to Insufficient Verification of Data Authenticity in all versions up to, and including, 6.1.17. This is due to the PayPal IPN (Instant Payment Notification) verification being disabled by default (`disable_ipn_verification` defaults to `'yes'` in `PayPalSettings.php`). This makes it possible for unauthenticated attackers to send forged PayPal IPN notifications to the publicly accessible IPN endpoint, marking unpaid form submissions as "paid" and triggering post-payment automation (emails, access grants, digital product delivery).

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Queued for AI Analysis

This CVE will be auto-analyzed on the next cron run.

🔗 References & Sources 2

https://fluentforms.com/docs/changelog/#2-toc-title

security@wordfence.com

https://www.wordfence.com/threat-intel/vulnerabilities/id/e5c62e54-da06-4b44-ba70-63065...

security@wordfence.com

📊 CVSS Score

7.5

/ 10.0 — High

📊 CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Attack VectorN — None / Network

Attack ComplexityL — Low / Local

Privileges RequiredN — None / Network

User InteractionN — None / Network

ScopeU — Unchanged

ConfidentialityN — None / Network

IntegrityH — High

AvailabilityN — None / Network

📋 Quick Facts

Severity High

CVSS Score7.5

CWECWE-345

EPSS0.02%

Exploit No

Patch ✓ Yes

Published 2026-02-27

Source Feed nvd

Views 2

🏷️ Tags

CWE-345

⚡ Actions

🔗 NVD Official Page ⚡ Exploit-DB Search 🐙 GitHub PoC Search 🎯 MITRE ATT&CK 📊 CVE Details

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