CVE-2023-49802 : Vulnerability Insights and Analysis

This article discusses the Cross-site Scripting vulnerability in the MantisBT LinkedCustomFields plugin, assigned with CVE ID CVE-2023-49802.

Understanding CVE-2023-49802

This CVE-2023-49802 vulnerability is due to a flaw in the MantisBT LinkedCustomFields plugin that allows for Cross-site Scripting (XSS) attacks.

What is CVE-2023-49802?

The LinkedCustomFields plugin for MantisBT enables users to link values between custom fields, resulting in linked drop-downs. The vulnerability allows malicious users to execute JavaScript by crafting custom fields, leading to XSS.

The Impact of CVE-2023-49802

The impact of this vulnerability is rated as MEDIUM severity with a CVSS base score of 6.7. It affects the confidentiality and integrity of the system, requiring high privileges for exploitation.

Technical Details of CVE-2023-49802

In this section, we delve into the technical aspects of CVE-2023-49802.

Vulnerability Description

The XSS vulnerability in the MantisBT LinkedCustomFields plugin (versions prior to 2.0.1) allows for the execution of JavaScript code when linking crafted custom fields, posing a security risk.

Affected Systems and Versions

The vulnerability impacts versions of the LinkedCustomFields plugin for MantisBT that are older than 2.0.1. Systems with these plugin versions are at risk of XSS attacks.

Exploitation Mechanism

Malicious actors can exploit this vulnerability by manipulating custom fields within the plugin, executing JavaScript when displaying linked fields during issue reporting or editing.

Mitigation and Prevention

To secure systems from CVE-2023-49802, immediate action and long-term security practices are crucial.

Immediate Steps to Take

Users are advised to update the LinkedCustomFields plugin to version 2.0.1 or higher to mitigate the vulnerability. Additionally, implementing MantisBT's default Content Security Policy can prevent script execution.

Long-Term Security Practices

In the long term, organizations should prioritize regular patching and updates to prevent security vulnerabilities like CVE-2023-49802. Monitoring for security advisories and applying updates promptly is essential.

Patching and Updates

Regularly checking for plugin updates and applying patches promptly is a proactive measure against emerging vulnerabilities. Stay informed about the latest security advisories to protect systems effectively.