CVE-2025-41036 in CMF
Summary
by MITRE • 09/04/2025
A vulnerability has been discovered in appRain CMF version 4.0.5, consisting of a stored authenticated XSS due to a lack of proper validation of user input, through the 'data[Admin][description]', 'data[Admin][f_name]' and 'data[Admin][l_name]' parameters in /apprain/admin/account/edit.
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Analysis
by VulDB Data Team • 09/05/2025
This vulnerability resides within appRain CMF version 4.0.5, where a stored cross-site scripting flaw has been identified in the administrative account management functionality. The weakness manifests through insufficient input validation mechanisms that fail to properly sanitize user-supplied data before storage and subsequent retrieval. Attackers with authenticated access can exploit this vulnerability by injecting malicious script code through three specific parameters within the account editing endpoint. The affected parameters include 'data[Admin][description]', 'data[Admin][f_name]', and 'data[Admin][l_name]' which are processed through the path /apprain/admin/account/edit. This stored XSS vulnerability allows an attacker to persistently inject malicious scripts that will execute in the context of other users who view the compromised account information, potentially leading to unauthorized access or data exfiltration.
The technical exploitation of this vulnerability follows a pattern consistent with CWE-079 - Cross-site Scripting and aligns with ATT&CK technique T1566.001 - Phishing via Social Media. The flaw represents a classic case of insufficient input sanitization where user data flows directly into the application's output without proper encoding or validation. When administrators or other users view the compromised account details, their browsers execute the injected scripts, creating a persistent threat that can be leveraged for session hijacking, credential theft, or redirection to malicious sites. The vulnerability's authenticated nature requires an attacker to first obtain valid credentials, but once achieved, the impact is significant as it allows for long-term persistence within the administrative environment.
The operational impact of this vulnerability extends beyond simple script execution, as it provides attackers with potential access to sensitive administrative functions and data. An attacker could inject scripts that steal session cookies, redirect users to phishing sites, or even execute more sophisticated attacks such as credential harvesting or privilege escalation. The stored nature of the vulnerability means that the malicious code remains active until manually removed from the database, creating a persistent threat vector that can affect multiple users over time. This vulnerability particularly impacts organizations relying on appRain CMF for content management, as it undermines the integrity of administrative user accounts and potentially compromises the entire system if administrative privileges are compromised.
Mitigation strategies should focus on implementing comprehensive input validation and output encoding mechanisms throughout the application's data flow. The recommended approach includes sanitizing all user inputs using established encoding libraries such as HTML entity encoding for web output, implementing strict parameter validation, and utilizing content security policies to limit script execution. Organizations should also consider implementing principle of least privilege access controls, regular security audits of input handling mechanisms, and monitoring for suspicious account modifications. Additionally, the application should be updated to a patched version that addresses the specific input validation gaps identified in the vulnerability. Security teams should conduct thorough penetration testing to identify similar vulnerabilities in other input fields and ensure that all user-supplied data undergoes proper sanitization before database storage. The vulnerability serves as a reminder of the critical importance of input validation in preventing persistent security flaws that can compromise entire administrative environments.