HTML Injection and XSS Vulnerability in Hibernate Validator - CVE-2023-1932
Summary
CVE-2023-1932: A flaw was found in hibernate-validator's 'isValid' method in the org.hibernate.validator.internal.constraintvalidators.hv.SafeHtmlValidator class, which can be bypassed by omitting the tag ending in a less-than characte... Affects libhibernate-validator-java versions < a883dcd11d7f9d8bdd8a2069a54cddd9213051c6. No fix is published. How to fix ↓
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Background
Hibernate Validator is a popular library used in Java applications for validating user input. It provides a set of annotations and a validation framework that helps ensure data integrity and security. The library is widely utilized in various Java-based frameworks, including Spring. However, a recent vulnerability has been identified in the 'isValid' method of the SafeHtmlValidator class, which could allow attackers to inject malicious HTML or execute Cross-Site Scripting (XSS) attacks.
Vulnerability Detail
CVE-2023-1932 is a security flaw in the Hibernate Validator's SafeHtmlValidator class. The vulnerability arises when the 'isValid' method fails to properly handle HTML tags that end with a less-than character. This oversight can lead to browsers rendering invalid HTML, which may allow attackers to inject malicious scripts or HTML content into web applications. The potential ramifications include unauthorized access to user data, session hijacking, and other forms of XSS attacks, compromising the security of affected applications.
How To Fix
No fixed version is published for this vulnerability.
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Workaround
As a temporary workaround, developers can implement additional input sanitization on user inputs before they are processed by the Hibernate Validator. This can be done by using libraries such as OWASP Java HTML Sanitizer to clean and validate HTML content before it is rendered in the application.
Conclusion
CVE-2023-1932 represents a significant security risk for applications using Hibernate Validator. It is crucial for developers to update their packages to the latest version to protect against potential HTML injection and XSS attacks. Implementing input sanitization can serve as a temporary measure while updates are being arranged.
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FAQ
CVE-2023-1932 is a vulnerability in the Hibernate Validator that allows for HTML injection and XSS attacks due to improper handling of HTML tags.
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 vulnerability can lead to unauthorized access to user data, session hijacking, and other forms of XSS attacks, compromising application security.
Yes, updating to the latest version of 'libhibernate-validator-java' will address the vulnerability.
If immediate updates are not possible, implement input sanitization as a temporary workaround to mitigate the risk of HTML injection.
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