CVE-2021-4139: Cross-site Scripting in pimcore
Summary
CVE-2021-4139: Cross-site Scripting in pimcore. Affects pimcore/pimcore versions < 10.2.7. Fixed in 10.2.7. How to fix ↓
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Background
pimcore is an open-source content management system (CMS) and digital experience platform (DXP) written in PHP. It provides a wide range of features for building and managing websites, including content creation, asset management, e-commerce, and more. However, pimcore is vulnerable to a Cross-site Scripting (XSS) attack, which allows an attacker to inject malicious scripts into web pages generated by the application.
Vulnerability Detail
The vulnerability, identified as CVE-2021-4139, is categorized as 'Improper Neutralization of Input During Web Page Generation' (CWE-79). This means that pimcore fails to properly sanitize user-supplied input, allowing an attacker to inject arbitrary HTML or JavaScript code into web pages. This can lead to various security risks, such as stealing sensitive information, performing unauthorized actions on behalf of the user, or redirecting users to malicious websites.
How To Fix
Minimum fixed version
10.2.7
This is the first release that contains the fix.
composer require pimcore/pimcore:10.2.7Tip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Workaround
If upgrading to the latest version is not immediately feasible, you can mitigate the risk by implementing input validation and output encoding in your application. Ensure that all user-supplied input is properly validated and sanitized before being rendered in web pages. Additionally, use output encoding techniques, such as HTML entity encoding or Content Security Policy (CSP), to prevent the execution of injected scripts.
Conclusion
In conclusion, pimcore is vulnerable to a Cross-site Scripting (XSS) attack, which can have serious security implications. It is crucial to upgrade to the latest version of pimcore or apply appropriate mitigation measures to protect your application and its users. For further assistance or support in vulnerability remediation, please contact DevNack.com.
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FAQ
Pimcore is an open-source content management system (CMS) and digital experience platform (DXP) written in PHP. It provides a wide range of features for building and managing websites, including content creation, asset management, e-commerce, and more.
Cross-site Scripting (XSS) is a type of security vulnerability that allows attackers to inject malicious scripts into web pages viewed by other users. This can lead to various security risks, such as stealing sensitive information or performing unauthorized actions on behalf of the user.
The vulnerability in pimcore allows an attacker to inject arbitrary HTML or JavaScript code into web pages, potentially leading to the theft of sensitive information, unauthorized actions, or redirection to malicious websites.
To fix this vulnerability, it is recommended to upgrade pimcore to version 10.2.7 or later. The latest version includes a patch that properly sanitizes user input, preventing the execution of malicious scripts.
If upgrading to the latest version is not immediately feasible, you can mitigate the risk by implementing input validation and output encoding in your application. Ensure that all user-supplied input is properly validated and sanitized before being rendered in web pages. Additionally, use output encoding techniques, such as HTML entity encoding or Content Security Policy (CSP), to prevent the execution of injected scripts.
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