CVE-2025-25620 in Unifiedtransform
Summary
by MITRE • 03/10/2025
Unifiedtransform 2.0 is vulnerable to Cross Site Scripting (XSS) in the Create assignment function.
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Analysis
by VulDB Data Team • 06/23/2025
The vulnerability identified as CVE-2025-25620 affects Unifiedtransform 2.0, a web-based platform that appears to be used for educational or training assignment management. This system is susceptible to Cross Site Scripting attacks through its Create assignment function, representing a critical security flaw that could allow malicious actors to inject malicious scripts into the platform's web interface. The vulnerability specifically manifests when users attempt to create new assignments, indicating that the input validation and output encoding mechanisms within this particular function are insufficient to prevent script injection attacks. The presence of such a flaw in assignment creation functionality is particularly concerning as it could enable attackers to compromise user sessions, steal sensitive data, or manipulate the assignment creation process itself.
The technical implementation of this vulnerability stems from inadequate sanitization of user inputs within the assignment creation workflow. When users submit assignment details through the web interface, the application fails to properly validate or encode the input data before rendering it back to the browser. This allows attackers to inject malicious javascript code that gets executed in the context of other users' browsers when they view the assignment. The vulnerability aligns with CWE-79 which specifically addresses Cross Site Scripting flaws in web applications. This weakness enables attackers to perform various malicious activities including session hijacking, data theft, and potentially gaining unauthorized access to user accounts. The flaw represents a failure in the principle of least privilege and proper input validation, where the application should treat all user inputs as potentially malicious and sanitize them appropriately before processing or displaying.
The operational impact of this vulnerability extends beyond simple script execution, as it fundamentally compromises the integrity and security of the assignment creation system. Attackers could exploit this weakness to inject persistent XSS payloads that would affect all users who view the compromised assignments, potentially leading to widespread session hijacking or data exfiltration. In educational environments, this vulnerability could allow malicious actors to access sensitive student information, manipulate assignment grades, or even redirect users to phishing sites. The vulnerability affects the platform's ability to maintain trust and security for its users, potentially leading to reputational damage and compliance violations. According to ATT&CK framework, this represents a technique categorized under T1059.007 - Command and Scripting Interpreter: JavaScript, where attackers leverage the platform's own scripting capabilities against its users. The exploitation could result in privilege escalation, data breaches, and disruption of educational services.
Mitigation strategies for this vulnerability must address both immediate remediation and long-term prevention measures. The primary fix involves implementing comprehensive input validation and output encoding mechanisms specifically within the assignment creation function. All user inputs should be sanitized using established libraries and frameworks designed to prevent XSS attacks, with proper HTML encoding of dynamic content before rendering. The system should employ Content Security Policy (CSP) headers to limit script execution and prevent unauthorized script loading. Regular security testing including automated scanning and manual penetration testing should be conducted to identify similar vulnerabilities in other parts of the application. Additionally, implementing proper session management, input length limitations, and sanitization of all user-supplied data can significantly reduce the attack surface. Organizations should also consider implementing web application firewalls and monitoring systems to detect and prevent exploitation attempts, while ensuring that all developers follow secure coding practices and security training to prevent similar vulnerabilities in future releases.