CVE-2025-49940

MEDIUM 6.5

WordPress Fusion Builder plugin <= 3.13.2 - Cross Site Scripting (XSS) vulnerability

CVSS Score

6.5

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-79
Vendor	themefusion
Product	fusion builder
Published	Oct 22, 2025
Last Updated	Apr 28, 2026

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CVSS v3 Breakdown

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

Required

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

Low

Affected Versions

ThemeFusion / Fusion Builder

0 ≤ 3.13.2

References

NVD ↗ CVE.org ↗ EPSS Data ↗

patchstack.com: https://patchstack.com/database/Wordpress/Plugin/fusion-builder/vulnerability/wordpress-fusion-builder-plugin-3-13-2-cross-site-scripting-xss-vulnerability?_s_id=cve

Credits

João Pedro S Alcântara (Kinorth) | Patchstack Bug Bounty Program