What is the CVSS score of CVE-2026-25472?

CVE-2026-25472 has a CVSS 3.1 base score of 6.5 (Medium). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L. EPSS exploitation probability: 0.0%.

Which versions of ThemeFusion Fusion Builder are affected by CVE-2026-25472?

CVE-2026-25472 presents notable security risk, a cross-site scripting vulnerability rated CVSS 6.5. Attackers could inject scripts to steal sessions or perform actions as authenticated users.

How to fix or mitigate CVE-2026-25472?

Within 30 days: Identify affected systems and apply vendor patches as part of regular patch cycle. Verify Content-Security-Policy and output encoding.

ThemeFusion Fusion Builder CVE-2026-25472

MEDIUM

Cross-site Scripting (XSS) (CWE-79)

2026-02-19 audit@patchstack.com

XSS

6.5

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

6.5 MEDIUM

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

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

Lifecycle Timeline

Analysis Generated

Mar 12, 2026 - 22:03 vuln.today

CVE Published

Feb 19, 2026 - 09:16 nvd

MEDIUM 6.5

DescriptionCVE.org

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 <= 3.14.3.

AnalysisAI

Stored cross-site scripting in ThemeFusion Fusion Builder through version 3.14.3 allows authenticated attackers to inject malicious scripts that execute in other users' browsers when viewing affected pages. An attacker with login credentials can leverage this vulnerability to steal session cookies, redirect users, or perform actions on their behalf. No patch is currently available for this vulnerability.

Technical ContextAI

Classified as CWE-79 (Cross-site Scripting (XSS)). Affects ThemeFusion Fusion Builder fusion-builder. 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 <= 3.14.3.

Affected ProductsAI

Product: ThemeFusion Fusion Builder fusion-builder.

RemediationAI

Monitor vendor advisories for a patch. Implement output encoding and Content Security Policy headers. Restrict network access to the affected service where possible.