CVE-2026-24833 DotNetNuke.Core Vulnerable to Stored XSS in Module Description
Attackers can inject malicious scripts into module descriptions, leading to code execution or account takeover in the DNN Persona Bar.
- 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-2026-24833?
CVE-2026-24833 is a high-severity cross-site scripting vulnerability in Dnnsoftware Dotnetnuke, published on 27 Jan 2026. 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 versions 9.13.10 and 10.2.0, a module could install with richtext in its description field which could contain scripts that will run for user in the Persona Bar. Versions 9.13.10 and 10.2.0 contain a fix for the issue.
Weakness: CWE-79
Which versions are affected by CVE-2026-24833?
It affects 1 product.
Products include Dnnsoftware Dotnetnuke.
How do I fix CVE-2026-24833?
No fix has been published for CVE-2026-24833 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-2026-24833 being exploited?
There is no known exploitation of CVE-2026-24833 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-9r3h-mpf8-25gj.