CVE-2022-50683 in Xperience
Summary
by MITRE • 12/18/2025
A stored cross-site scripting vulnerability in Kentico Xperience allows attackers to inject malicious scripts via form redirect URL configuration. This allows malicious scripts to execute in users' browsers through unvalidated form configuration settings.
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Analysis
by VulDB Data Team • 12/28/2025
The vulnerability identified as CVE-2022-50683 represents a critical stored cross-site scripting flaw within Kentico Xperience, a widely deployed content management and digital marketing platform. This security weakness resides in the form redirect URL configuration functionality, where the system fails to properly validate user-supplied input before storing and rendering it within the application interface. The vulnerability manifests when administrators configure form redirect settings, creating an opportunity for malicious actors to inject persistent script payloads that will execute whenever affected users interact with the application. The stored nature of this vulnerability means that once the malicious script is injected into the system's configuration, it persists and affects all users who encounter the vulnerable form redirect functionality, making it particularly dangerous for widespread exploitation.
The technical exploitation of this vulnerability occurs through the manipulation of form redirect URL parameters within the Kentico Xperience administrative interface. When an attacker successfully injects malicious JavaScript code into the redirect URL field, the system stores this input without adequate sanitization or validation. Subsequently, when legitimate users access forms that utilize these configured redirect URLs, the malicious scripts execute within their browser context, potentially leading to session hijacking, credential theft, or further compromise of the victim's system. The flaw specifically relates to inadequate input validation and output encoding mechanisms within the form configuration management subsystem, which should have implemented strict sanitization of user input before persisting it to the database. This vulnerability falls under the CWE-079 category of Cross-Site Scripting, specifically categorized as a stored XSS variant where the malicious payload is stored on the server and executed during subsequent user interactions.
The operational impact of CVE-2022-50683 extends beyond simple script execution, as it provides attackers with a potential foothold for more sophisticated attacks within the compromised environment. Attackers can leverage this vulnerability to steal session cookies, redirect users to malicious domains, or even inject additional malicious payloads that could lead to complete system compromise. The vulnerability affects organizations using Kentico Xperience versions prior to the patched release, potentially exposing thousands of websites and applications that rely on this platform for their digital presence. Given that Kentico Xperience is commonly used by enterprises for customer-facing applications, the attack surface is broad and includes both internal administrative users and external website visitors who interact with forms. The vulnerability's impact is particularly severe in environments where administrators have elevated privileges and where the platform handles sensitive user data through form submissions.
Organizations should implement immediate mitigations including applying the vendor-provided security patches, implementing strict input validation for all form configuration parameters, and conducting comprehensive audits of existing form redirect configurations. Network segmentation and monitoring should be enhanced to detect potential exploitation attempts, while security teams should review all form-related configurations for signs of malicious injection. The implementation of Content Security Policy headers can provide additional defense-in-depth measures to prevent execution of unauthorized scripts, though this does not address the root cause. Administrators should also consider implementing privileged access management controls to limit who can modify form redirect configurations, reducing the attack surface. According to ATT&CK framework, this vulnerability maps to T1566.001 (Phishing: Spearphishing Attachment) and T1059.007 (Command and Scripting Interpreter: JavaScript) as attackers may use this vulnerability to establish persistent access or execute malicious payloads. Regular security assessments and penetration testing should be conducted to identify similar vulnerabilities in other components of the Kentico Xperience platform, ensuring comprehensive protection against similar stored XSS threats.