CVE-2024-56364: Cross-site Scripting Vulnerability in SimpleXLSX Package
Summary
CVE-2024-56364: Impact When calling the extended toHTMLEx method, it is possible to execute arbitrary JavaScript code. Affects shuchkin/simplexlsx versions >= 1.0.12, < 1.1.13. Fixed in 1.1.13. How to fix ↓
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Background
SimpleXLSX is a PHP library that allows developers to read and convert Excel files into HTML format. It is widely used for its simplicity and efficiency in handling spreadsheet data. However, a critical vulnerability has been identified in its extended toHTMLEx method, which can lead to security risks if not addressed promptly.
Vulnerability Detail
The vulnerability arises from the SimpleXLSXEx::readThemeColors, SimpleXLSXEx::getColorValue, and SimpleXLSX::toHTMLEx methods, which do not properly sanitize user input. This oversight allows an attacker to inject arbitrary JavaScript code when the toHTMLEx method is called, potentially leading to Cross-site Scripting (XSS) attacks. The ramifications include unauthorized actions performed on behalf of users, data theft, and compromised user sessions.
How To Fix
Minimum fixed version
1.1.13
This is the first release that contains the fix.
composer require shuchkin/simplexlsx:1.1.13Tip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Workaround
As a temporary measure, avoid using the data publication feature via the toHTMLEx method until the package is updated. This can help mitigate the risk of XSS attacks while you work on applying the patch.
Conclusion
The CVE-2024-56364 vulnerability in the SimpleXLSX package poses a significant risk due to its potential for XSS attacks. It is crucial for developers to update to version 1.1.13 or later to mitigate this risk. Utilizing tools like Vulert can help monitor and alert for such vulnerabilities in real-time.
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FAQ
CVE-2024-56364 is a vulnerability in the SimpleXLSX package that allows for Cross-site Scripting (XSS) attacks due to improper input sanitization.
You can check if your application is affected by using Vulert, which monitors open-source vulnerabilities in real-time. Visit Vulert Scanner to analyze your composer.lock file.
The vulnerability can lead to unauthorized actions, data theft, and compromised user sessions due to the execution of arbitrary JavaScript code.
Yes, the vulnerability has been patched in version 1.1.13 of the SimpleXLSX package. It is recommended to update to this version.
If you cannot update the package right away, avoid using the toHTMLEx method to prevent potential XSS attacks.
References
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