CVE-2019-17496 Explained : Impact and Mitigation

Craft CMS before version 3.3.8 is vulnerable to stored XSS attacks through the name field, which is mishandled during site deletion.

Understanding CVE-2019-17496

Craft CMS versions prior to 3.3.8 have a security vulnerability that allows for stored XSS attacks through the name field.

What is CVE-2019-17496?

Craft CMS versions before 3.3.8 are susceptible to stored XSS attacks via the name field, particularly when a site is deleted.

The Impact of CVE-2019-17496

This vulnerability could be exploited by attackers to execute malicious scripts in the context of a user's browser, potentially leading to unauthorized actions or data theft.

Technical Details of CVE-2019-17496

Craft CMS CVE-2019-17496 technical specifics.

Vulnerability Description

Craft CMS versions prior to 3.3.8 are affected by a stored XSS vulnerability in the name field, which is not properly handled during site deletion.

Affected Systems and Versions

Product: Craft CMS
Vendor: Not applicable
Versions affected: All versions before 3.3.8

Exploitation Mechanism

The vulnerability allows attackers to inject and execute malicious scripts through the name field, exploiting the mishandling during site deletion.

Mitigation and Prevention

Steps to address and prevent CVE-2019-17496.

Immediate Steps to Take

Upgrade Craft CMS to version 3.3.8 or later to mitigate the vulnerability.
Regularly monitor for security updates and patches from Craft CMS.

Long-Term Security Practices

Implement input validation and output encoding to prevent XSS attacks.
Conduct regular security audits and penetration testing to identify and address vulnerabilities.

Patching and Updates

Craft CMS has released version 3.3.8, which includes a fix for the stored XSS vulnerability. Ensure timely installation of updates to protect against CVE-2019-17496.