CVE-2022-39017 : Vulnerability Insights and Analysis

M-Files Hubshare version 3.3.1.6 and prior are impacted by a vulnerability that allows authenticated attackers to conduct cross-site scripting attacks through specially crafted comments. This CVE, identified as CAPEC-63, poses a high severity risk with a CVSS base score of 8.2.

Understanding CVE-2022-39017

This section delves into the nature of the vulnerability and its implications.

What is CVE-2022-39017?

The vulnerability stems from improper input validation and output encoding in all comments fields of M-Files Hubshare versions before 3.3.10.9, enabling attackers to execute cross-site scripting attacks by injecting malicious code into comments.

The Impact of CVE-2022-39017

With a CVSS base score of 8.2 and classified under CAPEC-63 (Cross-Site Scripting), this vulnerability possesses a high severity threat. Authenticated attackers can leverage it to execute malicious scripts in a victim's browser, potentially leading to data theft, unauthorized actions, or account compromise.

Technical Details of CVE-2022-39017

This section provides insights into the vulnerability specifics.

Vulnerability Description

The vulnerability arises due to inadequate validation and encoding of input in comment fields, granting attackers the ability to embed malicious scripts within comments.

Affected Systems and Versions

M-Files Hubshare versions before 3.3.10.9 are confirmed to be impacted by this vulnerability, putting users of these versions at risk.

Exploitation Mechanism

Authenticated attackers can exploit this vulnerability by submitting specially crafted comments containing malicious scripts, which, when viewed by other users, execute in their browsers, enabling the attacker to perform unauthorized actions.

Mitigation and Prevention

Explore the necessary actions to mitigate the risks associated with CVE-2022-39017.

Immediate Steps to Take

Users of affected versions should update to M-Files Hubshare version 3.3.10.9 or newer to address this vulnerability. Additionally, exercise caution while interacting with comments to avoid executing malicious scripts.

Long-Term Security Practices

Implement robust input validation and output encoding mechanisms in web applications to prevent cross-site scripting vulnerabilities. Regular security assessments and code reviews can help identify and address potential security gaps.

Patching and Updates

Stay informed about security advisories and updates from M-Files to promptly apply patches addressing known vulnerabilities.