CVE-2020-7680 : What You Need to Know

Docsify prior to version 4.11.4 is vulnerable to Cross-site Scripting (XSS) attacks due to inadequate validation of fragment identifiers, allowing the injection of arbitrary JavaScript/HTML.

Understanding CVE-2020-7680

Docsify.js versions prior to 4.11.4 are affected by a Cross-site Scripting (XSS) vulnerability.

What is CVE-2020-7680?

CVE-2020-7680 is a security vulnerability in Docsify that enables attackers to execute malicious scripts by injecting them into the page through specially crafted URLs.

The Impact of CVE-2020-7680

The vulnerability allows for the execution of arbitrary JavaScript/HTML code within the Docsify page, potentially leading to unauthorized access, data theft, or other malicious activities.

Technical Details of CVE-2020-7680

Docsify.js version 4.11.4 and below are susceptible to XSS attacks.

Vulnerability Description

Docsify.js uses fragment identifiers to load resources from server-side .md files without proper validation, enabling attackers to inject malicious code.

Affected Systems and Versions

Product: docsify
Vendor: n/a
Versions Affected: All versions prior to 4.11.4

Exploitation Mechanism

Attackers can exploit this vulnerability by providing external URLs after the /#/ in the format domain.com/#//attacker.com to execute arbitrary JavaScript/HTML.

Mitigation and Prevention

It is crucial to take immediate steps to mitigate the risk posed by CVE-2020-7680.

Immediate Steps to Take

Update Docsify to version 4.11.4 or later to patch the vulnerability.
Implement input validation and sanitization to prevent XSS attacks.

Long-Term Security Practices

Regularly monitor security advisories and update dependencies promptly.
Conduct security audits and penetration testing to identify and address vulnerabilities.

Patching and Updates

Apply security patches and updates provided by Docsify promptly to ensure protection against known vulnerabilities.