CVE-2019-10772 : Vulnerability Insights and Analysis

CVE-2019-10772 is a vulnerability in enshrined/svg-sanitize prior to version 0.13.1 that allows bypassing the sanitizer through the "xlink:href" attribute, potentially leading to Cross-site Scripting (XSS) attacks.

Understanding CVE-2019-10772

This CVE involves a security issue in the handling of the xlink namespace by the sanitizer, enabling attackers to exploit the vulnerability.

What is CVE-2019-10772?

The mishandling of the xlink namespace by the sanitizer makes it possible to bypass enshrined/svg-sanitize before version 0.13.1 by utilizing the "xlink:href" attribute.

The Impact of CVE-2019-10772

This vulnerability could result in Cross-site Scripting (XSS) attacks, allowing malicious actors to execute scripts in the context of a user's browser.

Technical Details of CVE-2019-10772

CVE-2019-10772 involves the following technical aspects:

Vulnerability Description

The issue arises from the improper handling of the xlink namespace by the sanitizer, enabling the bypass of enshrined/svg-sanitize versions prior to 0.13.1.

Affected Systems and Versions

Product: enshrined/svg-sanitize
Vendor: Not applicable
Versions affected: All versions before 0.13.1

Exploitation Mechanism

Attackers can exploit this vulnerability by using the "xlink:href" attribute to bypass the sanitizer's security mechanisms.

Mitigation and Prevention

To address CVE-2019-10772, consider the following mitigation strategies:

Immediate Steps to Take

Upgrade enshrined/svg-sanitize to version 0.13.1 or later to mitigate the vulnerability.
Implement input validation to sanitize user inputs and prevent malicious scripts.

Long-Term Security Practices

Regularly update and patch software to address known vulnerabilities.
Conduct security audits and code reviews to identify and fix potential security flaws.

Patching and Updates

Stay informed about security advisories and updates related to enshrined/svg-sanitize to apply patches promptly.