CVE-2020-14413 : Security Advisory and Response

NeDi 1.9C is vulnerable to XSS due to an incorrect implementation of sanitize() in inc/libmisc.php. This allows for bypassing of the SCRIPT tag, as demonstrated by an onerror attribute of an IMG element.

Understanding CVE-2020-14413

NeDi 1.9C is susceptible to a cross-site scripting (XSS) vulnerability that arises from a flawed implementation of the sanitize() function in inc/libmisc.php.

What is CVE-2020-14413?

The vulnerability in NeDi 1.9C enables attackers to execute XSS attacks by circumventing the escaping of the SCRIPT tag from user-controllable values.

The Impact of CVE-2020-14413

This vulnerability can be exploited by injecting malicious scripts into the application, potentially leading to unauthorized access, data theft, and other security breaches.

Technical Details of CVE-2020-14413

NeDi 1.9C's vulnerability to XSS due to an incorrect implementation of the sanitize() function.

Vulnerability Description

The flaw allows attackers to bypass the escaping of the SCRIPT tag, as demonstrated by injecting an onerror attribute of an IMG element.

Affected Systems and Versions

NeDi 1.9C

Exploitation Mechanism

Attackers can exploit this vulnerability by injecting malicious scripts through user-controllable values, such as the onerror attribute of an IMG element.

Mitigation and Prevention

It is crucial to take immediate steps to mitigate the risks posed by CVE-2020-14413.

Immediate Steps to Take

Implement input validation and output encoding to prevent XSS attacks.
Regularly update NeDi to the latest version to patch known vulnerabilities.

Long-Term Security Practices

Conduct regular security audits and penetration testing to identify and address vulnerabilities.
Educate developers and users on secure coding practices to prevent XSS vulnerabilities.

Patching and Updates

Apply security patches provided by NeDi promptly to address the XSS vulnerability and enhance overall system security.