SB2025102935 - Multiple vulnerabilities in DotNetNuke

Description

This security bulletin contains information about 3 secuirty vulnerabilities.

1) Stored cross-site scripting (CVE-ID: CVE-2025-64094)

The disclosed vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.

The vulnerability exists due to insufficient sanitization of user-supplied data within uploaded SVG files. A remote user can inject and execute arbitrary HTML and script code in user's browser in context of vulnerable website.

Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.

2) Arbitrary file upload (CVE-ID: CVE-2025-64095)

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to insufficient validation of file during file upload within the default HTML editor provider. A remote attacker can upload a malicious file and execute it on the server.

3) Arbitrary file upload (CVE-ID: CVE-2025-62802)

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to insufficient validation of file during file upload within the out-of-box experience. A remote attacker can upload a malicious file and execute it on the server.

Remediation

Install update from vendor's website.

References

• https://github.com/dnnsoftware/Dnn.Platform/security/advisories/GHSA-hmvq-8p83-cq52
• https://github.com/dnnsoftware/Dnn.Platform/security/advisories/GHSA-3m8r-w7xg-jqvw
• https://github.com/dnnsoftware/Dnn.Platform/security/advisories/GHSA-2374-6cvw-qmx6