CVE-2025-41045 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[sconfig][ethical_licensekey]' parameter in /apprain/admin/config/ethical.
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Analysis
by VulDB Data Team • 09/05/2025
This vulnerability exists within appRain CMF version 4.0.5 where a stored cross-site scripting flaw has been identified in the administrative configuration section. The issue manifests through insufficient input validation mechanisms that fail to properly sanitize user-provided data. Specifically, the vulnerability occurs when processing the 'data[sconfig][ethical_licensekey]' parameter within the /apprain/admin/config/ethical endpoint, which allows authenticated attackers to inject malicious scripts that persist in the application's database. The flaw represents a classic stored XSS vulnerability where malicious code submitted by an authenticated user is stored and subsequently executed in the context of other users who access the affected administrative interface. This type of vulnerability falls under CWE-079 which categorizes cross-site scripting flaws as weaknesses in input validation and output encoding. The attack vector requires an authenticated user with administrative privileges, making it particularly concerning as it leverages legitimate user permissions to execute malicious code. The vulnerability creates a persistent threat where any user who views the configuration page could be subjected to script execution, potentially leading to session hijacking, credential theft, or further system compromise.
The operational impact of this vulnerability extends beyond simple script execution as it fundamentally undermines the integrity of the administrative interface. When an attacker successfully injects malicious JavaScript into the license key field, the script executes in the context of any user who accesses the configuration page, including other administrators. This creates a potential for privilege escalation attacks where the malicious code could perform actions such as modifying system configurations, accessing sensitive data, or redirecting users to malicious sites. The stored nature of the vulnerability means that the malicious payload remains active even after the initial injection, creating a persistent threat that could affect multiple users over time. According to ATT&CK framework, this vulnerability maps to T1059.007 for script execution and T1531 for credential access, as the attack could potentially lead to unauthorized access to system credentials or session tokens. The vulnerability also represents a significant risk to application availability and data integrity, as it could be used to modify critical system parameters or redirect users to phishing sites that could harvest additional credentials.
Mitigation strategies for this vulnerability should focus on implementing comprehensive input validation and output encoding mechanisms throughout the application. The primary defense involves sanitizing all user input through proper validation techniques including whitelisting acceptable characters and encoding output before rendering in the user interface. The application should implement strict validation of the 'data[sconfig][ethical_licensekey]' parameter to ensure that it conforms to expected formats and does not contain potentially malicious script content. Additionally, implementing Content Security Policy headers can provide an additional layer of protection against script execution even if input validation is bypassed. Organizations should also consider implementing proper access controls and monitoring for unusual administrative activities that might indicate exploitation attempts. The fix should include proper parameter validation at the point of input acceptance and ensure that all stored data is properly escaped before being rendered back to users. Regular security auditing of input handling mechanisms and implementing automated testing for XSS vulnerabilities should be part of ongoing security maintenance. Given the severity of stored XSS vulnerabilities, immediate patching or mitigation implementation is recommended as the most effective approach to addressing this threat. The vulnerability also highlights the importance of following secure coding practices as outlined in OWASP Top 10 and other industry standards that emphasize the need for proper input validation and output encoding to prevent such persistent security flaws.