How to fix CVE-2025-48378?

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

Is Dotnetnuke affected by CVE-2025-48378?

Organizations using the Microsoft ecosystem. should be aware of moderate risk from CVE-2025-48378, a cross-site scripting vulnerability rated CVSS 6.1. Attackers could inject scripts to steal sessions or perform actions as authenticated users.

CVE-2025-48378

MEDIUM

2025-05-23 [email protected]

6.1

CVSS 4.0

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:H/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

Scope

Lifecycle Timeline

Analysis Generated

Mar 28, 2026 - 18:43 vuln.today

Patch Released

Mar 28, 2026 - 18:43 nvd

Patch available

CVE Published

May 23, 2025 - 16:15 nvd

MEDIUM 6.1

Description

DNN (formerly DotNetNuke) is an open-source web content management platform (CMS) in the Microsoft ecosystem. Prior to version 9.13.9, uploaded SVG files could contain scripts and if rendered inline those scripts could run allowing XSS attacks. Version 9.13.9 fixes the issue.

Analysis

DNN (formerly DotNetNuke) is an open-source web content management platform (CMS) in the Microsoft ecosystem. Rated medium severity (CVSS 6.1), this vulnerability is remotely exploitable, low attack complexity. This Cross-Site Scripting (XSS) vulnerability could allow attackers to inject malicious scripts into web pages viewed by other users.

Technical Context

This vulnerability is classified as Cross-Site Scripting (XSS) (CWE-79), which allows attackers to inject malicious scripts into web pages viewed by other users. DNN (formerly DotNetNuke) is an open-source web content management platform (CMS) in the Microsoft ecosystem. Prior to version 9.13.9, uploaded SVG files could contain scripts and if rendered inline those scripts could run allowing XSS attacks. Version 9.13.9 fixes the issue. Affected products include: Dnnsoftware Dotnetnuke. Version information: version 9.13.9.

Affected Products

Dnnsoftware Dotnetnuke.

Remediation

A vendor patch is available. Apply the latest security update as soon as possible. Sanitize all user input, use Content-Security-Policy headers, encode output contextually (HTML, JS, URL). Use frameworks with built-in XSS protection.

Priority Score

Low Medium High Critical

KEV: 0

EPSS: +0.1

CVSS: +30

POC: 0

CVE-2025-48378 vulnerability details – vuln.today

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CVE-2025-48378

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CVE-2025-48378

CVSS Vector

Lifecycle Timeline

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Description

Analysis

Technical Context

Affected Products

Remediation

Priority Score

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External POC / Exploit Code