CVE-2025-59548 DNN Vulnerable to Reflected Cross-Site Scripting (XSS) in CKEditor File Browser
Attackers can inject JavaScript via crafted URLs in the CKEditor File Browser, potentially compromising user sessions in DNN CMS.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2025-59548?
CVE-2025-59548 is a medium-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, specially crafted URLs to the FileBrowser are vulnerable to javascript injection, affecting any unsuspecting user clicking such link. This issue has been patched in version 10.1.0.
Weakness: CWE-79
Which versions are affected by CVE-2025-59548?
It affects 1 product.
Products include Dnnsoftware Dotnetnuke.
How do I fix CVE-2025-59548?
No fix has been published for CVE-2025-59548 yet. Limit exposure of the affected software until one is available.
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-2025-59548 being exploited?
There is no known exploitation of CVE-2025-59548 in the wild and no public exploit code.
Other vulnerabilities in Dnnsoftware Dotnetnuke
- CVE-2017-9822 DotNetNuke (DNN) Remote Code Execution
- CVE-2018-15811 DotNetNuke (DNN) Inadequate Encryption Strength
- CVE-2018-18325 DotNetNuke (DNN) Inadequate Encryption Strength
- CVE-2025-64095 DNN Insufficient Access Control - Image Upload allows for Site Content Overwrite
- CVE-2006-3601 Privilege escalation in n/a
Sources
Also known as GHSA-5fj9-542v-w4rq.