CVE-2025-41069 is an authorization bypass vulnerability classified under CWE-639 (Authorization Bypass Through User-Controlled Key) affecting T-INNOVA's DeporSite DSuite 2025, specifically version v02.14.1115. The vulnerability arises from an Insecure Direct Object Reference (IDOR) flaw in the handling of the 'idUsuario' parameter within the AJAX endpoint '/ajax/TInnova_v2/Formulario_Consentimiento/llamadaAjax/obtenerDatosConsentimientos'. This parameter is user-controllable and insufficiently validated on the server side, allowing an attacker with low privileges to manipulate it to access or modify data belonging to other users without proper authorization. The affected resource involves user consent data, which is typically sensitive and confidential. The CVSS 4.0 vector indicates network attack vector (AV:N), low attack complexity (AC:L), no privileges required (PR:L), no user interaction (UI:N), and limited impact on confidentiality and integrity (VC:N, VI:L), with no impact on availability. The vulnerability does not require authentication but does require low privileges, suggesting that an attacker must have some minimal access to the system. No patches or known exploits are currently available, but the vulnerability is publicly disclosed and assigned a medium severity score of 5.3. The flaw could lead to unauthorized data disclosure or unauthorized modification of consent records, potentially violating data protection regulations and undermining user trust. The root cause is insufficient access control checks on server-side parameters, a common issue in web applications that handle sensitive user data. This vulnerability highlights the importance of robust authorization checks and parameter validation in web services, especially those managing personal data.

For European organizations, the impact of CVE-2025-41069 can be significant due to the potential exposure or unauthorized modification of confidential user consent data. This could lead to violations of the EU General Data Protection Regulation (GDPR), resulting in legal penalties and reputational damage. Organizations in sectors such as healthcare, sports, or any domain where T-INNOVA's DeporSite DSuite 2025 is used to manage user consents or personal data are particularly vulnerable. The breach of consent data could undermine user trust and lead to further exploitation if attackers leverage the exposed information for social engineering or identity theft. Although the vulnerability does not directly affect system availability, the integrity and confidentiality impacts are critical, especially given the sensitivity of consent information. The medium severity rating reflects the moderate ease of exploitation combined with the potential for meaningful data compromise. European entities must consider the regulatory and operational consequences of unauthorized data access or modification, including compliance audits and incident response costs.

To mitigate CVE-2025-41069, organizations should implement strict server-side authorization checks to validate that the 'idUsuario' parameter corresponds to the authenticated user's permissions before processing any request. Input validation and parameter sanitization must be enforced to prevent unauthorized access. Employing role-based access control (RBAC) and least privilege principles can limit the scope of potential exploitation. Monitoring and logging access to sensitive endpoints should be enhanced to detect anomalous or suspicious request patterns indicative of exploitation attempts. Since no official patches are currently available, organizations should consider deploying Web Application Firewalls (WAFs) with custom rules to block unauthorized parameter manipulation. Additionally, conducting a thorough security review of similar endpoints for IDOR vulnerabilities is advisable. User awareness and training on the importance of secure authentication and session management can further reduce risk. Finally, organizations should prepare incident response plans specific to data exposure incidents to minimize impact if exploitation occurs.