CVE-2020-36493 : Security Advisory and Response

DedeCMS v7.5 SP2 contains multiple cross-site scripting (XSS) vulnerabilities in media_main.php, posing a security risk.

Understanding CVE-2020-36493

DedeCMS v7.5 SP2 has been found to have XSS vulnerabilities in specific parameters, potentially allowing attackers to execute malicious scripts.

What is CVE-2020-36493?

The CVE-2020-36493 vulnerability involves multiple XSS flaws in DedeCMS v7.5 SP2, particularly in parameters like

activepath

,

keyword

,

tag

,

fmdo=x&filename

,

CKEditor

, and

CKEditorFuncNum

.

The Impact of CVE-2020-36493

These vulnerabilities can be exploited by attackers to inject and execute malicious scripts, leading to potential data theft, unauthorized access, and other security breaches.

Technical Details of CVE-2020-36493

DedeCMS v7.5 SP2's vulnerability details and affected systems.

Vulnerability Description

The XSS vulnerabilities in media_main.php of DedeCMS v7.5 SP2 allow attackers to inject malicious scripts through various parameters, posing a risk to the system's security.

Affected Systems and Versions

Product: DedeCMS v7.5 SP2
Vendor: N/A
Version: N/A

Exploitation Mechanism

Attackers can exploit the XSS vulnerabilities by manipulating the

activepath

,

keyword

,

tag

,

fmdo=x&filename

,

CKEditor

, and

CKEditorFuncNum

parameters to execute malicious scripts.

Mitigation and Prevention

Steps to mitigate and prevent the CVE-2020-36493 vulnerability.

Immediate Steps to Take

Disable or sanitize user inputs to prevent XSS attacks.
Regularly monitor and update the CMS to patch security vulnerabilities.

Long-Term Security Practices

Implement input validation and output encoding to prevent XSS attacks.
Educate users on safe browsing practices and awareness of potential security risks.

Patching and Updates

Apply security patches and updates provided by DedeCMS to address the XSS vulnerabilities and enhance system security.