CVE-2015-1566: DotNetNuke.Core - Cross-Site Scripting (XSS) Vulnerability
Summary
CVE-2015-1566: Moderate severity vulnerability that affects DotNetNuke.Core. Affects DotNetNuke.Core versions < 7.4.0. Fixed in 7.4.0. How to fix ↓
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Background
DotNetNuke.Core is a NuGet package that provides core functionality for the DotNetNuke (DNN) content management system. It is widely used for building and managing websites, intranets, and extranets. This package is an essential component of DNN, enabling users to create and customize web applications with ease. However, a vulnerability has been discovered in versions prior to 7.4.0 that allows remote attackers to inject arbitrary web script or HTML through unspecified vectors.
Vulnerability Detail
The vulnerability in DotNetNuke.Core is a cross-site scripting (XSS) vulnerability. It occurs when user input is not properly validated or sanitized before being displayed on a web page. In this case, the vulnerability allows remote attackers to inject malicious scripts or HTML code into the application, which can then be executed by unsuspecting users. This can lead to various attacks, such as stealing sensitive information, session hijacking, or defacing the website. The specific vectors through which the attack can be carried out are not disclosed in the available information.
How To Fix
Latest published version: 10.4.0 as of 23 Oct 2026
Upgrading to it may include breaking changes; the version below is the minimum fixed release for this vulnerability.
If you need the minimum change
7.4.0
This is the first release that contains the fix.
Tip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Workaround
No specific workaround is mentioned in the available information. However, as a general best practice, developers should always validate and sanitize user input before displaying it on a web page. This can be done by using appropriate encoding or escaping techniques to prevent the execution of malicious scripts or HTML code.
Conclusion
The Cross-Site Scripting (XSS) vulnerability in DotNetNuke.Core prior to version 7.4.0 allows remote attackers to inject arbitrary web script or HTML, posing a risk of various attacks. To mitigate this vulnerability, it is recommended to upgrade to version 7.4.0 or later. Developers should also follow best practices for input validation and sanitization to prevent similar vulnerabilities in the future. For further support on vulnerability remediation, you can contact DevNack.com.
See every vulnerability recorded for DotNetNuke.Core →
FAQ
The vulnerability allows remote attackers to inject malicious scripts or HTML code into the application, which can then be executed by unsuspecting users. This can lead to various attacks, such as stealing sensitive information, session hijacking, or defacing the website.
No, only versions prior to 7.4.0 are affected. It is recommended to upgrade to the latest version to ensure the security of the application.
The available information does not mention any known exploits for this vulnerability. However, it is always important to stay updated with the latest security patches and follow best practices to minimize the risk of exploitation.
Yes, this vulnerability can be exploited remotely by attackers who can send malicious input through unspecified vectors. It is important to fix this vulnerability as soon as possible to prevent potential attacks.
You can use Vulert, a tool that monitors and alerts in real-time for open-source vulnerabilities. Vulert can analyze your packages.config file and provide information about any known vulnerabilities, including this XSS vulnerability in DotNetNuke.Core. You can access the Vulert playground at Vulert Scanner to check if your application is affected without any signup or installation.
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