CVE-2025-7869 is a cross-site scripting (XSS) vulnerability identified in Portabilis i-Educar version 2.9.0, specifically within the Turma Module component. The vulnerability arises from improper sanitization of the 'nm_tipo' parameter in the file intranet/educar_turma_tipo_det.php. An attacker can manipulate this parameter to inject malicious scripts that execute in the context of the victim's browser. The vulnerability is remotely exploitable without authentication, requiring only user interaction to trigger the malicious payload. The CVSS 4.0 base score is 5.1, indicating a medium severity level. The attack vector is network-based with low attack complexity, no privileges required, but user interaction is necessary. The impact primarily affects confidentiality and integrity at a low level, with no direct availability impact. The vendor was notified but has not responded or issued a patch, and public exploit details have been disclosed, increasing the risk of exploitation. This vulnerability could allow attackers to steal session cookies, perform actions on behalf of users, or conduct phishing attacks within the affected web application environment.

For European organizations using Portabilis i-Educar 2.9.0, particularly educational institutions, this vulnerability poses a risk of unauthorized access to user sessions and data manipulation. Since i-Educar is an education management system, exploitation could lead to exposure of sensitive student and staff information, unauthorized grade changes, or disruption of educational workflows. The lack of vendor response and patch availability increases exposure time, making European entities more vulnerable. Additionally, the medium severity and public exploit disclosure may encourage opportunistic attackers targeting educational institutions, which are increasingly targeted in Europe. The impact on confidentiality and integrity could undermine trust in educational data systems and potentially violate GDPR requirements related to data protection and breach notification.

Organizations should immediately implement input validation and output encoding on the 'nm_tipo' parameter to prevent script injection. In the absence of an official patch, deploying Web Application Firewalls (WAFs) with custom rules to detect and block malicious payloads targeting this parameter is critical. Educating users to recognize phishing attempts and suspicious links can reduce the risk of exploitation via social engineering. Network segmentation to isolate the i-Educar system and restricting access to trusted IPs can limit exposure. Monitoring web server logs for unusual requests to intranet/educar_turma_tipo_det.php and anomalous user behavior can help detect exploitation attempts. Organizations should also engage with the vendor for updates and consider upgrading to newer versions once patches are available. Finally, applying Content Security Policy (CSP) headers can mitigate the impact of XSS by restricting script execution.