CVE-2019-14953 : Security Advisory and Response

JetBrains YouTrack versions before 2019.2.53938 had a potential cross-site scripting (XSS) vulnerability when accessing issue attachments through the Firefox browser.

Understanding CVE-2019-14953

This CVE entry describes a security vulnerability in JetBrains YouTrack that could allow for XSS attacks.

What is CVE-2019-14953?

The CVE-2019-14953 vulnerability pertains to a potential XSS issue in earlier versions of JetBrains YouTrack, specifically before version 2019.2.53938. The vulnerability could be exploited when users accessed issue attachments using the Firefox browser.

The Impact of CVE-2019-14953

The vulnerability could allow malicious actors to execute arbitrary scripts in the context of the user's browser, potentially leading to unauthorized actions or data theft.

Technical Details of CVE-2019-14953

This section provides more technical insights into the vulnerability.

Vulnerability Description

The XSS vulnerability in JetBrains YouTrack versions prior to 2019.2.53938 allowed attackers to inject and execute malicious scripts when users interacted with issue attachments via Firefox.

Affected Systems and Versions

Affected Product: JetBrains YouTrack
Affected Versions: Versions before 2019.2.53938

Exploitation Mechanism

The vulnerability could be exploited by tricking a user into accessing a specially crafted attachment link, leading to the execution of malicious scripts in the user's browser.

Mitigation and Prevention

To address and prevent exploitation of CVE-2019-14953, follow these mitigation strategies:

Immediate Steps to Take

Update JetBrains YouTrack to version 2019.2.53938 or newer to eliminate the vulnerability.
Avoid accessing suspicious or untrusted attachment links in the YouTrack application.

Long-Term Security Practices

Regularly update software and applications to the latest versions to patch known vulnerabilities.
Educate users on safe browsing practices and the risks associated with interacting with unknown or unverified content.

Patching and Updates

JetBrains released a fix in version 2019.2.53938 to address the XSS vulnerability. Ensure timely application of security patches and updates to stay protected.