CVE-2025-25054 in Movable Type
Summary
by MITRE • 02/19/2025
Movable Type contains a reflected cross-site scripting vulnerability in the user information edit page. When Multi-Factor authentication plugin is enabled and a user accesses a crafted page while logged in to the affected product, an arbitrary script may be executed on the web browser of the user.
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Analysis
by VulDB Data Team • 02/19/2025
This vulnerability exists within the Movable Type content management system where a reflected cross-site scripting flaw has been identified in the user information editing page functionality. The vulnerability becomes exploitable when the Multi-Factor Authentication plugin is enabled and a user navigates to a maliciously crafted web page while maintaining an active session within the affected product. The technical implementation allows an attacker to inject malicious scripts that execute within the victim's browser context, leveraging the existing authenticated session to deliver the payload. This represents a classic reflected xss vulnerability where user-supplied input is not properly sanitized or encoded before being reflected back in the application's response, creating an opportunity for malicious code execution in the victim's browser environment. The flaw specifically targets the user information edit page functionality, which suggests that the vulnerability may be triggered through parameters or input fields associated with user profile modifications.
The operational impact of this vulnerability extends beyond simple script execution as it provides attackers with the ability to hijack user sessions, steal sensitive information, manipulate user data, or redirect users to malicious sites. When combined with the Multi-Factor Authentication plugin, the vulnerability becomes particularly concerning because it can potentially bypass certain security controls that users expect to be in place. The attack requires the user to be logged into the system, which means that successful exploitation depends on social engineering or phishing techniques to get the victim to click on malicious links. This vulnerability aligns with CWE-79 which specifically addresses cross-site scripting flaws in web applications, and follows patterns described in the ATT&CK framework under T1566 for phishing techniques and T1059 for command and scripting interpreter usage. The reflected nature of the vulnerability means that the malicious payload is delivered via a crafted URL or form submission that gets immediately reflected back to the user's browser, making it a particularly effective vector for attack delivery.
Mitigation strategies should focus on implementing proper input validation and output encoding mechanisms throughout the application's user information editing functionality. The most effective immediate solution involves sanitizing all user-supplied input before it is processed or reflected back in the application's response, ensuring that any potentially malicious script content is neutralized or removed. Organizations should also consider implementing Content Security Policy headers to limit the execution of unauthorized scripts within the application context. Additionally, the Multi-Factor Authentication plugin should be reviewed to ensure that it properly validates all user requests and does not inadvertently create additional attack surfaces. Regular security assessments and code reviews should be conducted to identify similar patterns in other application components, as reflected xss vulnerabilities often occur in multiple areas of web applications. The implementation of web application firewalls and input validation rules can provide additional layers of protection against similar attacks, while user education regarding suspicious links and phishing attempts remains critical for overall security posture. This vulnerability demonstrates the importance of maintaining consistent security practices across all application components, particularly those that handle user data and authentication flows.