CVE-2019-18793 : Security Advisory and Response

Parallels Plesk Panel 9.5 allows cross-site scripting (XSS) through the "fileName" parameter in target/locales/tr-TR/help/index.htm.

Understanding CVE-2019-18793

This CVE identifies a vulnerability in Parallels Plesk Panel 9.5 that can be exploited through a specific parameter, enabling XSS attacks.

What is CVE-2019-18793?

The vulnerability in Parallels Plesk Panel 9.5 allows malicious actors to execute cross-site scripting attacks by manipulating the "fileName" parameter in a specific URL.

The Impact of CVE-2019-18793

This vulnerability could lead to unauthorized access to sensitive information, cookie theft, and potential manipulation of content on the affected web application.

Technical Details of CVE-2019-18793

Parallels Plesk Panel 9.5 vulnerability details.

Vulnerability Description

The "fileName" parameter in target/locales/tr-TR/help/index.htm? of Parallels Plesk Panel 9.5 enables cross-site scripting (XSS) attacks.

Affected Systems and Versions

Product: Parallels Plesk Panel 9.5
Vendor: Parallels
Versions: All versions are affected

Exploitation Mechanism

The vulnerability can be exploited by injecting malicious scripts into the "fileName" parameter, leading to XSS attacks.

Mitigation and Prevention

Protecting systems from CVE-2019-18793.

Immediate Steps to Take

Implement input validation to sanitize user inputs and prevent script injection attacks.
Regularly monitor and audit web application logs for any suspicious activities.

Long-Term Security Practices

Conduct regular security assessments and penetration testing to identify and address vulnerabilities.
Stay informed about security updates and patches released by the vendor.

Patching and Updates

Apply security patches provided by Parallels to mitigate the XSS vulnerability in Plesk Panel 9.5.