CVE-2024-42699: Cross-Site Scripting Vulnerability in Alkacon OpenCMS 17.0
Summary
CVE-2024-42699: OpenCMS Cross-Site Scripting vulnerability. Affects org.opencms:opencms-core versions < 17.0. No fix is published. How to fix ↓
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Background
Alkacon OpenCMS is a widely used open-source content management system (CMS) that enables users to create, manage, and publish digital content. It is built on Java and is known for its flexibility and scalability, making it suitable for various applications, from small websites to large enterprise solutions. However, OpenCMS 17.0 has been identified to have a Cross-Site Scripting (XSS) vulnerability that can be exploited by attackers.
Vulnerability Detail
The vulnerability arises from the Create/Modify article function in Alkacon OpenCMS 17.0, where a remote attacker can inject malicious JavaScript payloads through the image title sub-field in the image field. This XSS vulnerability can lead to unauthorized actions being performed on behalf of users, data theft, and potentially compromising user accounts. The vulnerability is classified under CWE-79, which pertains to improper neutralization of input during web page generation.
How To Fix
No fixed version is published for this vulnerability.
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Workaround
As a temporary workaround, users can sanitize the input in the image title sub-field to prevent the execution of any JavaScript code. This can be done by implementing input validation and escaping any special characters that could lead to script execution.
Conclusion
The Cross-Site Scripting vulnerability in Alkacon OpenCMS 17.0 poses significant risks to users and their data. It is crucial to update to a patched version to ensure the security of the application. Additionally, implementing input validation can serve as a temporary measure until the update is completed.
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FAQ
XSS is a security vulnerability that allows attackers to inject malicious scripts into web pages viewed by other users, potentially leading to data theft or unauthorized actions.
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The risks include unauthorized access to user accounts, data theft, and the potential for attackers to perform actions on behalf of users.
Yes, users should upgrade to a version later than 17.0 to mitigate the vulnerability.
If immediate updates are not possible, implement input validation and sanitization as a temporary measure to mitigate the risk of XSS attacks.
References
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