CVE-2021-4172 : Vulnerability Insights and Analysis

A detailed overview of the Cross-site Scripting (XSS) vulnerability found in the star7th/showdoc GitHub repository prior to version 2.10.2.

Understanding CVE-2021-4172

This section delves into the specifics of the CVE-2021-4172 vulnerability.

What is CVE-2021-4172?

The CVE-2021-4172 vulnerability is a Cross-site Scripting (XSS) flaw stored in the star7th/showdoc GitHub repository before version 2.10.2.

The Impact of CVE-2021-4172

The impact of this vulnerability is rated as MEDIUM, with a CVSS base score of 6.5. It could allow attackers to execute malicious scripts in the context of an unsuspecting user's browser.

Technical Details of CVE-2021-4172

This section provides technical details about the CVE-2021-4172 vulnerability.

Vulnerability Description

The flaw arises from improper neutralization of input during web page generation, enabling attackers to inject and execute malicious scripts.

Affected Systems and Versions

The vulnerability affects versions of star7th/showdoc earlier than 2.10.2.

Exploitation Mechanism

Exploiting this vulnerability requires the attacker to inject malicious scripts using crafted inputs to the affected web application.

Mitigation and Prevention

In this section, we discuss measures to mitigate and prevent exploitation of CVE-2021-4172.

Immediate Steps to Take

Users are advised to update star7th/showdoc to version 2.10.2 or later to mitigate the vulnerability. Additionally, input validation and output encoding can help prevent XSS attacks.

Long-Term Security Practices

Implementing secure coding practices, conducting regular security audits, and educating developers on secure coding techniques can help prevent similar vulnerabilities.

Patching and Updates

Regularly monitor for security updates and patches released by star7th to address known vulnerabilities.