FunnelKit Funnel Builder Pro <= 3.15.0.4 - Authenticated (Customer+) Stored Cross-Site Scripting

2026-07-07 00:00

Austin Ginder

Strategic Overview

Status

Patched in 3.15.0.5

Affected PluginFunnelKit Funnel Builder Pro

Affected Version<= 3.15.0.4

CVSS6.4Medium

CVECVE-2026-57373

View all FunnelKit Funnel Builder Pro vulnerabilities

Vulnerability Overview

The FunnelKit Funnel Builder Pro plugin for WordPress is vulnerable to Stored Cross-Site Scripting in versions up to, and including, 3.15.0.4 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with customer-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

Technical Analysis

REMEDIATION: Update to version 3.15.0.5, or a newer patched version --- IDENTIFIER: CWE-79 (Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')) 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.

External References

https://www.cve.org/CVERecord?id=CVE-2026-57373 https://www.wordfence.com/threat-intel/vulnerabilities/id/e38e8450-743f-47e7-931e-4c2636bd42b4

CVSS Vector

6.4

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

Base

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredLow
User InteractionNone
ScopeChanged
ConfidentialityLow
IntegrityLow
AvailabilityNone

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