CVE-2025-59546 DNN Vulnerable to Stored XSS Using Backend Admin Credentials

What is CVE-2025-59546?

CVE-2025-59546 is a low-severity cross-site scripting vulnerability in Dnnsoftware Dotnetnuke, published on 23 Sep 2025. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.

Official description

DNN (formerly DotNetNuke) is an open-source web content management platform (CMS) in the Microsoft ecosystem. Prior to version 10.1.0, administrators and content editors can set html in module titles that could include javascript which could be used for XSS based attacks. This issue has been patched in version 10.1.0.

Weakness: CWE-79

Which versions are affected by CVE-2025-59546?

2 open source packages ship an affected version, including DotNetNuke.Core. It affects 1 product.

Products include Dnnsoftware Dotnetnuke.

How do I fix CVE-2025-59546?

Upgrade DotNetNuke.Core to 10.1.0 or later.

Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.

Is CVE-2025-59546 being exploited?

There is no known exploitation of CVE-2025-59546 in the wild and no public exploit code.

Other vulnerabilities in Dnnsoftware Dotnetnuke

• CVE-2017-9822 DotNetNuke (DNN) Remote Code Execution Exploited High 8.8
• CVE-2018-15811 DotNetNuke (DNN) Inadequate Encryption Strength Exploited High 7.5
• CVE-2018-18325 DotNetNuke (DNN) Inadequate Encryption Strength Exploited High 7.5
• CVE-2025-64095 DNN Insufficient Access Control - Image Upload allows for Site Content Overwrite Critical 10.0
• CVE-2006-3601 Privilege escalation in n/a Critical 10.0

All Dnnsoftware Dotnetnuke vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-gj8m-5492-q98h.