CVE-2026-57373
Received Received - Intake

Customer XSS in Funnel Kit Funnel Builder PRO <= 3.45.0.4

Publication date: 2026-07-23

Last updated on: 2026-07-23

Assigner: Patchstack

Description
Customer Cross Site Scripting (XSS) in Funnel Kit Funnel Builder PRO <= 3.15.0.4 versions.

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Meta Information

Published
2026-07-23
Last Modified
2026-07-23
Generated
2026-07-23
AI Q&A
2026-07-23
EPSS Evaluated
N/A
NVD
CVE-2026-57373
EUVD
EUVD-2026-48164

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
funnel_kit funnel_builder_pro to 3.15.0.4 (inc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-79 The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

Attack-Flow Graph

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Executive Summary

This is a Cross Site Scripting (XSS) vulnerability in the Funnel Kit Funnel Builder PRO WordPress plugin versions up to 3.15.0.4. It allows attackers to inject malicious scripts into web pages viewed by users. Exploitation requires user interaction, such as clicking a malicious link.

Impact Analysis

Attackers could inject scripts to steal user data, redirect visitors to malicious sites, or display unwanted ads. Privileged users are typically targeted. The impact includes potential data breaches, compromised user sessions, and reputational damage.

Compliance Impact

XSS vulnerabilities can lead to unauthorized data access or modification, violating GDPR (data protection) and HIPAA (health data privacy). Non-compliance risks include fines, legal action, and loss of trust. Immediate patching is advised to maintain compliance.

Mitigation Strategies

Update the Funnel Kit Funnel Builder PRO plugin to version 3.15.0.5 or later. Alternatively, apply a mitigation rule provided by Patchstack to address the Cross Site Scripting (XSS) vulnerability.

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