CVE-2024-55554 in Portal Server
Summary
by MITRE • 12/17/2024
Intrexx Portal Server before 12.0.2 allows XSS via a user-defined portlet.
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Analysis
by VulDB Data Team • 06/22/2025
The vulnerability identified as CVE-2024-55554 affects the Intrexx Portal Server version 12.0.2 and earlier, presenting a cross-site scripting vulnerability that stems from inadequate input validation within the portlet functionality. This flaw allows attackers to inject malicious scripts through user-defined portlets, potentially compromising the security of the portal environment and the data it handles. The vulnerability specifically targets the server's processing of user-controllable input within portlet configurations, creating an avenue for unauthorized code execution in the context of a victim's browser session.
The technical root cause of this vulnerability resides in the insufficient sanitization of user input when rendering portlet content within the Intrexx Portal Server framework. When administrators or users define custom portlets, the server fails to properly escape or validate the data submitted through these interfaces, allowing malicious actors to embed script tags or other executable code within portlet parameters. This weakness aligns with CWE-79, which describes cross-site scripting vulnerabilities resulting from improper handling of untrusted input. The vulnerability operates at the application layer and can be exploited through web-based interfaces that support portlet customization, making it particularly dangerous in enterprise environments where portal servers host sensitive business data and user information.
The operational impact of CVE-2024-55554 extends beyond simple script injection, as it can enable attackers to perform session hijacking, steal sensitive cookies, redirect users to malicious websites, or even execute arbitrary commands within the victim's browser context. An attacker exploiting this vulnerability could potentially gain access to authenticated sessions, read or modify data, or escalate privileges within the portal environment. The risk is compounded by the fact that portlets are often used to display dynamic content and integrate with various backend systems, making them prime targets for exploitation. Organizations utilizing Intrexx Portal Server versions prior to 12.0.2 face significant exposure to these threats, particularly in environments where user access controls are not properly enforced or where users have the ability to create custom portlets.
Organizations should immediately implement mitigations including updating to Intrexx Portal Server version 12.0.2 or later, which contains the necessary patches to address this vulnerability. Additionally, administrators should review and restrict user permissions for portlet creation, implement proper input validation and output encoding mechanisms, and deploy web application firewalls to monitor and filter malicious traffic. The vulnerability demonstrates the importance of following secure coding practices and input validation principles as outlined in the OWASP Top Ten and MITRE ATT&CK framework, particularly in the context of web application security. Organizations should also consider implementing comprehensive monitoring solutions to detect potential exploitation attempts and maintain up-to-date threat intelligence to identify similar vulnerabilities in their broader technology stack.