CVE-2019-12562 : Vulnerability Insights and Analysis

An issue of Stored Cross-Site Scripting has been discovered in versions of DotNetNuke (DNN) before 9.4.0. This vulnerability enables remote attackers to store and insert malicious scripts into the admin notification page. If successfully exploited, the attacker can carry out various actions with admin privileges, including managing content, adding users, and uploading backdoors to the server. The exploitation occurs when an admin user accesses a notification page that contains the stored cross-site scripting code.

Understanding CVE-2019-12562

Stored Cross-Site Scripting in DotNetNuke (DNN) Version before 9.4.0 allows remote attackers to store and embed the malicious script into the admin notification page.

What is CVE-2019-12562?

It is a vulnerability in DotNetNuke (DNN) versions before 9.4.0 that permits remote attackers to execute malicious scripts on the admin notification page.

The Impact of CVE-2019-12562

Remote attackers can exploit this vulnerability to perform unauthorized actions with admin privileges, compromising the security and integrity of the system.

Technical Details of CVE-2019-12562

Stored Cross-Site Scripting in DotNetNuke (DNN) Version before 9.4.0.

Vulnerability Description

Allows remote attackers to store and insert malicious scripts into the admin notification page.

Affected Systems and Versions

DotNetNuke (DNN) versions before 9.4.0.

Exploitation Mechanism

Admin users accessing a notification page containing the stored cross-site scripting code.

Mitigation and Prevention

Immediate Steps to Take:

Update DotNetNuke (DNN) to version 9.4.0 or later.
Regularly monitor and review admin notification pages for any suspicious scripts.

Long-Term Security Practices:

Implement input validation to prevent script injection attacks.
Educate users on safe browsing practices and the risks of executing unknown scripts.

Patching and Updates:

Apply security patches and updates provided by DotNetNuke (DNN) to address this vulnerability.