CVE-2026-25472
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Stored XSS in ThemeFusion Fusion Builder

Publication date: 2026-02-19

Last updated on: 2026-04-01

Assigner: Patchstack

Description
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in ThemeFusion Fusion Builder fusion-builder allows Stored XSS.This issue affects Fusion Builder: from n/a through <= 3.14.1.
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Meta Information
Published
2026-02-19
Last Modified
2026-04-01
Generated
2026-06-16
AI Q&A
2026-02-19
EPSS Evaluated
2026-06-15
NVD
CVE-2026-25472
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
themefusion fusion_builder to 3.14.3 (inc)
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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.
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Executive Summary

This vulnerability is a type of Cross-site Scripting (XSS) known as Stored XSS that exists in the ThemeFusion Fusion Builder plugin. It occurs due to improper neutralization of input during web page generation, which means that malicious input is not properly sanitized before being included in web pages. As a result, an attacker can inject malicious scripts that are stored and later executed in the context of users visiting the affected site.

Impact Analysis

This Stored XSS vulnerability can allow attackers to execute malicious scripts in the browsers of users visiting a website using the affected Fusion Builder plugin. This can lead to theft of user credentials, session hijacking, defacement of the website, or distribution of malware. It compromises the security and trustworthiness of the affected website.

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