CVE-2019-7543 : Security Advisory and Response

KindEditor version 4.1.11 contains a reflected Cross-site Scripting (XSS) vulnerability in the php/demo.php content1 parameter.

Understanding CVE-2019-7543

In KindEditor 4.1.11, the php/demo.php content1 parameter has a reflected Cross-site Scripting (XSS) vulnerability.

What is CVE-2019-7543?

This CVE refers to a reflected XSS vulnerability in KindEditor version 4.1.11, specifically in the php/demo.php content1 parameter.

The Impact of CVE-2019-7543

The vulnerability could allow an attacker to execute malicious scripts in the context of a user's browser, potentially leading to unauthorized actions or data theft.

Technical Details of CVE-2019-7543

Vulnerability Description

The KindEditor version 4.1.11 is susceptible to a reflected XSS attack through the content1 parameter in php/demo.php.

Affected Systems and Versions

Product: Not applicable
Vendor: Not applicable
Version: Not applicable

Exploitation Mechanism

The vulnerability can be exploited by crafting a malicious link containing script code that, when clicked by a user, executes in the user's browser.

Mitigation and Prevention

Immediate Steps to Take

Disable the affected parameter or sanitize user input to prevent script injection.
Regularly monitor and audit web application logs for suspicious activities.

Long-Term Security Practices

Implement input validation and output encoding to mitigate XSS vulnerabilities.
Keep software and libraries up to date to patch known security issues.
Educate developers on secure coding practices to prevent similar vulnerabilities.
Consider using Content Security Policy (CSP) to reduce the impact of XSS attacks.

Patching and Updates

Apply patches or updates provided by the software vendor to address the XSS vulnerability in KindEditor version 4.1.11.