CVE-2023-39306 | BDVDB-2026-228778 Detail

ThemeFusionFusion Builder

Description#

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in ThemeFusion Fusion Builder allows Reflected XSS.This issue affects Fusion Builder: from n/a through 3.11.1.

Impact#

CAPEC-591 Reflected XSS

Weaknesses#

CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

References#

https://patchstack.com/database/vulnerability/fusion-builder/wordpress-avada-builder-plugin-3-11-1-reflected-cross-site-scripting-xss-vulnerability?_s_id=cve

Exploit#

No public exploit known

History#

Version 12024-03-27Record published in the CVE List.
Version 22026-04-28Most recent update recorded in the CVE List.

Published

Published: 2024-03-27
Last modified: 2026-04-28

Vendor information

Vendor: ThemeFusion
Product: Fusion Builder

All ThemeFusion vulnerabilities

Score

7.1 High

EPSS

less than 1%, Very Low

Estimated chance of exploitation in the next 30 days. EPSS percentile: 33.5.

KEV

Not listed in the CISA Known Exploited Vulnerabilities catalog.

Impact

Cross-Site Scripting

Action

No specific action is recorded in the source data. Check the references for vendor guidance.

Affected Systems

Vulnerable
<= 3.11.1
Fixed
Not stated
Vulnerable
Not stated
Fixed
3.11.2

Scoring System

CVSS v4.0

Not available

CVSS v3.1

7.1 High

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

Metric breakdown
Attack Vector	Network
Attack Complexity	Low
Privileges Required	None
User Interaction	Required
Scope	Changed
Confidentiality	Low
Integrity	Low
Availability	Low

CVSS v3.0

Not available

CVSS v2

Not available

Source: CVE List v5 (record); CISA KEV (kev, action); FIRST EPSS (epss).