CVE-2020-36763 : Security Advisory and Response

Cross Site Scripting (XSS) vulnerability in DuxCMS 2.1 allows remote attackers to run arbitrary code via the content, time, copyfrom parameters when adding or editing a post.

Understanding CVE-2020-36763

This CVE-2020-36763 involves a Cross Site Scripting (XSS) vulnerability in DuxCMS 2.1, enabling remote attackers to execute arbitrary code by manipulating specific parameters.

What is CVE-2020-36763?

CVE-2020-36763 is a security vulnerability identified in DuxCMS 2.1 that permits malicious actors to inject and execute arbitrary code through certain parameters during post creation or editing processes.

The Impact of CVE-2020-36763

This vulnerability can lead to severe consequences, including unauthorized code execution, data theft, and potential compromise of the affected system's integrity and confidentiality.

Technical Details of CVE-2020-36763

This section delves into the technical aspects of the CVE.

Vulnerability Description

The vulnerability in DuxCMS 2.1 allows for Cross Site Scripting (XSS) attacks, enabling threat actors to insert and execute malicious code through specific parameters, such as content, time, and copyfrom, during post management operations.

Affected Systems and Versions

Vendor: n/a
Product: n/a
Versions: All versions are affected.

Exploitation Mechanism

The exploitation of this vulnerability occurs when remote attackers manipulate the content, time, and copyfrom parameters while creating or editing a post in DuxCMS 2.1, allowing them to inject and execute arbitrary code.

Mitigation and Prevention

Protecting systems from CVE-2020-36763 requires immediate actions and long-term security measures.

Immediate Steps to Take

Disable post creation and editing functionalities until a patch is available.
Implement input validation mechanisms to sanitize user inputs and prevent XSS attacks.
Regularly monitor and audit post-related activities for any suspicious behavior.

Long-Term Security Practices

Conduct regular security training for developers and administrators on secure coding practices.
Keep systems and software updated to mitigate known vulnerabilities.

Patching and Updates

Apply patches or updates provided by DuxCMS to address the XSS vulnerability and enhance system security.