A Basic Cross-Site Scripting (XSS) vulnerability has been discovered in the popular Crocoblock JetFormBuilder plugin for WordPress. This vulnerability allows attackers to inject malicious code, potentially compromising both website and user data. The vulnerability affects all JetFormBuilder versions from the initial release through version 3.1.4.
Details
Cross-Site Scripting (XSS) is a type of security vulnerability that enables an attacker to inject client-side scripts into web pages viewed by other users. This type of vulnerability is often used by attackers to bypass access controls and steal confidential information.
In the JetFormBuilder plugin, the vulnerability exists due to improper neutralization of script-related HTML tags in a web page. JetFormBuilder is a popular WordPress plugin used for creating custom forms on websites. This vulnerability allows attackers to inject malicious code into the plugin, potentially compromising website data and user information.
The vulnerability has been assigned the identifier CVE-2023-48763 and is classified as a Basic XSS vulnerability.
Exploit Details
To perform a code injection attack, an attacker can craft a specially encoded payload in the form of a script. This payload can be injected into the JetFormBuilder simply by submitting a form on a vulnerable website. The attacker's code is then executed in the victim's browser, potentially providing unauthorized access to sensitive information and the ability to modify web content or redirect users to other malicious websites.
The following code snippet demonstrates an example of a basic XSS payload
<script>alert("XSS Vulnerability Detected")</script>
By replacing the alert() function with a more sophisticated script, an attacker could gain access to sensitive information, deface the website, or redirect users to other malicious sites.
Mitigations
To protect your website from this vulnerability, you should update the JetFormBuilder plugin to the latest version, which includes a patch to address this issue. You can download the latest version of JetFormBuilder from the official WordPress plugin repository:
- JetFormBuilder – WordPress Plugin
In addition to updating your plugin, it's essential to follow best practices for web application security, such as filtering user inputs and escaping HTML output.
Original References
- Crocoblock JetFormBuilder Security Advisory
- CVE-2023-48763 – National Vulnerability Database (NVD)
Conclusion
The basic XSS vulnerability in Crocoblock's JetFormBuilder plugin poses a significant risk to website owners and users. Updating to the latest version of the plugin is an essential defense against potential attacks. Website owners should regularly review and update their software to maintain robust security practices and safeguard sensitive data.
Timeline
Published on: 04/24/2024 16:15:08 UTC
Last modified on: 04/24/2024 17:16:50 UTC