CVE-2020-2269: Stored XSS vulnerability in chosen-views-tabbar Plugin
Summary
CVE-2020-2269: Stored XSS vulnerability in chosen-views-tabbar Plugin. Affects org.jenkins-ci.plugins:chosen-views-tabbar versions < 1.2. No fix is published. How to fix ↓
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Background
The chosen-views-tabbar Plugin is a Maven package used in Jenkins, an open-source automation server. This plugin provides a tab bar to navigate between different views in Jenkins. It allows users to select views from a dropdown menu. The plugin is vulnerable to a stored cross-site scripting (XSS) attack, which occurs when user input is not properly sanitized and is displayed on a web page without escaping special characters. This vulnerability can be exploited by attackers with the ability to configure views in Jenkins.
Vulnerability Detail
The chosen-views-tabbar Plugin version 1.2 and earlier does not properly escape view names in the dropdown menu, leading to a stored XSS vulnerability. An attacker with the ability to configure views can inject malicious scripts into the view names, which will be executed when other users access the dropdown menu. This can result in unauthorized actions, data theft, or further exploitation of the affected system. The vulnerability has a CVSS score of 8.0, indicating a high severity level.
How To Fix
No fixed version is published for this vulnerability.
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Workaround
As a temporary workaround, users can disable the chosen-views-tabbar Plugin until a fixed version is available. This can be done by accessing the Jenkins plugin management page, locating the chosen-views-tabbar Plugin, and disabling it. However, disabling the plugin may impact the functionality of the tab bar navigation in Jenkins.
Conclusion
The chosen-views-tabbar Plugin in Jenkins is vulnerable to a stored XSS attack, allowing attackers with the ability to configure views to inject and execute malicious scripts. To mitigate this vulnerability, it is recommended to upgrade to a fixed version of the plugin or temporarily disable it. For further assistance and support in vulnerability remediation, please contact DevNack.com.
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FAQ
The chosen-views-tabbar Plugin is a Maven package used in Jenkins to provide a tab bar for navigating between different views in the Jenkins interface.
A stored XSS vulnerability is a type of cross-site scripting attack where malicious scripts are injected into a web application and stored on the server. These scripts are then executed when other users access the affected page, leading to potential unauthorized actions or data theft.
An attacker with the ability to configure views in Jenkins can inject malicious scripts into the view names using the chosen-views-tabbar Plugin. When other users access the dropdown menu to select views, the injected scripts will be executed in their browsers, potentially leading to unauthorized actions or data theft.
The CVSS score of this vulnerability is 8.0, indicating a high severity level.
To update the chosen-views-tabbar Plugin, refer to the official documentation or use the package manager of your Jenkins installation. Follow the provided instructions to install the latest version of the plugin, which should include security patches to mitigate the XSS vulnerability.
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