Cross-Site Scripting (XSS) Vulnerability in jsoup - CVE-2015-6748
Summary
CVE-2015-6748: Cross-site scripting (XSS) vulnerability in jsoup before 1.8.3. Affects jsoup versions < 1.8.3-1. Fixed in 1.8.3-1. How to fix ↓
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Background
jsoup is a popular Java library used for parsing HTML and manipulating the DOM. It provides a convenient API for extracting and working with data from HTML documents, making it a valuable tool for web scraping and data extraction tasks. However, prior to version 1.8.3, jsoup was susceptible to a cross-site scripting (XSS) vulnerability that could allow attackers to inject malicious scripts into web applications that utilize jsoup for HTML parsing.
Vulnerability Detail
The vulnerability, identified as CVE-2015-6748, is a cross-site scripting (XSS) issue that affects jsoup versions before 1.8.3. It arises from improper handling of user input, which could allow an attacker to inject arbitrary JavaScript code into web pages rendered by applications using jsoup. This could lead to unauthorized actions being performed on behalf of users, data theft, or other malicious activities. The severity of this vulnerability is reflected in its CVSS score of 6.1, indicating a moderate risk level.
How To Fix
Minimum fixed version
1.8.3-1
This is the first release that contains the fix.
sudo apt-get install --only-upgrade jsoupTip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Workaround
If upgrading jsoup is not immediately feasible, a temporary workaround is to sanitize user input before processing it with jsoup. This can be achieved by using libraries such as OWASP Java HTML Sanitizer or similar tools that can help filter out potentially harmful scripts from user inputs.
Conclusion
CVE-2015-6748 is a significant cross-site scripting vulnerability affecting jsoup versions before 1.8.3. It is crucial for developers using jsoup to upgrade to the latest version to protect their applications from potential attacks. Additionally, implementing input sanitization can provide a temporary safeguard against this vulnerability.
See every vulnerability recorded for jsoup →
FAQ
CVE-2015-6748 is a cross-site scripting (XSS) vulnerability found in jsoup versions prior to 1.8.3, which allows attackers to inject malicious scripts into web applications.
You can use the Vulert playground at Vulert Scanner to check if your application is affected by this vulnerability without needing to sign up.
The potential impacts include unauthorized actions performed on behalf of users, data theft, and other malicious activities that could compromise user security.
The recommended action is to upgrade jsoup to version 1.8.3 or later to eliminate the vulnerability.
Yes, you can sanitize user input using libraries like OWASP Java HTML Sanitizer as a temporary measure until you can upgrade jsoup.
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