CVE-2025-8789 is an authorization bypass vulnerability identified in Portabilis i-Educar versions up to 2.9.0, specifically affecting an unspecified part of the /module/Api/Diario component's API endpoint. The vulnerability allows an attacker to remotely manipulate requests to bypass authorization controls, potentially granting access to restricted functionality or data without proper credentials or permissions. The vulnerability is classified as problematic and has a CVSS 4.0 base score of 5.3, indicating a medium severity level. The attack vector is network-based (AV:N), requiring low attack complexity (AC:L), no privileges (PR:L) but no user interaction (UI:N). The vulnerability impacts confidentiality to a low extent (VC:L) but does not affect integrity or availability. The scope remains unchanged (S:U), and no authentication is required (AT:N). The vendor was notified but has not responded or provided a patch, and no known exploits are currently observed in the wild. The vulnerability disclosure is public, which increases the risk of exploitation attempts. Given the nature of the vulnerability—authorization bypass in an educational management system's API—attackers could potentially access sensitive student or administrative data or perform unauthorized actions within the system, undermining the security and privacy of educational institutions using i-Educar.

For European organizations, particularly educational institutions or government bodies using Portabilis i-Educar, this vulnerability poses a significant risk to the confidentiality of sensitive educational data, including student records, grades, and administrative information. Unauthorized access could lead to data breaches, privacy violations under GDPR, and reputational damage. Although the vulnerability does not directly impact system integrity or availability, the ability to bypass authorization remotely could facilitate further attacks or unauthorized data manipulation. The lack of vendor response and patch availability increases the window of exposure. European organizations relying on i-Educar for school management may face compliance issues and potential legal consequences if sensitive data is compromised. Additionally, attackers could leverage this vulnerability to gain footholds in networks, especially if i-Educar instances are integrated with other internal systems.

Given the absence of an official patch, European organizations should implement compensating controls immediately. These include restricting network access to the i-Educar API endpoints using firewalls or VPNs to limit exposure to trusted IP addresses only. Implement strict monitoring and logging of API access to detect anomalous or unauthorized requests indicative of exploitation attempts. Employ Web Application Firewalls (WAFs) with custom rules to detect and block suspicious API calls targeting the /module/Api/Diario endpoint. Conduct thorough access reviews and enforce the principle of least privilege on user accounts within i-Educar. If possible, disable or restrict the vulnerable API module until a patch is available. Organizations should also prepare incident response plans specific to this vulnerability and maintain communication channels with Portabilis for updates. Regular backups of critical data should be ensured to mitigate potential data loss scenarios.