CVE-2025-49940: WordPress Fusion Builder plugin <= 3.13.2 - Cross Site Scripting (XSS) vulnerability
Published Oct 22, 2025
·Updated
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in ThemeFusion Fusion Builder fusion-builder allows DOM-Based XSS.This issue affects Fusion Builder: from n/a through <= 3.13.2.
Affected Software
2 affected components
ThemeFusion Fusion Builder<=3.13.2
WordPress Fusion Builder<=3.13.2
Event History
Oct 22, 2025
CVE Published
via MITRE·02:32 PM
Data Sourced
via MITRE·02:32 PM
DescriptionSeverityWeakness
Data Sourced
via NVD·03:15 PM
DescriptionSeverityWeakness
Frequently Asked Questions
1
What is the severity of CVE-2025-49940?
CVE-2025-49940 is classified as a high-severity Cross-site Scripting (XSS) vulnerability.
2
How do I fix CVE-2025-49940?
To fix CVE-2025-49940, update ThemeFusion Fusion Builder to version 3.13.3 or later.
3
What versions of Fusion Builder are affected by CVE-2025-49940?
CVE-2025-49940 affects Fusion Builder versions from n/a through 3.13.2.
4
What type of vulnerability is CVE-2025-49940?
CVE-2025-49940 is an Improper Neutralization of Input During Web Page Generation vulnerability leading to DOM-Based XSS.
5
Can CVE-2025-49940 affect my WordPress site?
Yes, CVE-2025-49940 can affect WordPress sites using the vulnerable versions of Fusion Builder.