CVE-2025-8346 is a cross-site scripting (XSS) vulnerability identified in version 2.10 of Portabilis i-Educar, an educational management system. The vulnerability exists in the /educar_aluno_lst.php file, specifically in the handling of the ref_cod_matricula parameter. An attacker can inject malicious HTML/JavaScript code by manipulating this parameter, for example, by submitting input such as "><img src=x onerror=alert('CVE-Hunters')>. This input is not properly sanitized or encoded by the application, allowing the injected script to execute in the context of a victim's browser. The vulnerability is exploitable remotely without requiring authentication or privileges, and user interaction is needed only to visit a crafted URL or page containing the malicious payload. The CVSS 4.0 base score is 5.3 (medium severity), reflecting the network attack vector, low attack complexity, no privileges or user interaction required for exploitation, and limited impact on confidentiality and integrity but some impact on availability and integrity due to potential script execution. The vendor was notified but has not responded or issued a patch, and no known exploits are currently reported in the wild. However, public disclosure of the exploit code increases the risk of exploitation. This vulnerability could be leveraged to perform session hijacking, defacement, phishing, or other malicious activities targeting users of the i-Educar platform.

For European organizations, especially educational institutions using Portabilis i-Educar 2.10, this vulnerability poses a risk to the confidentiality and integrity of user sessions and data. Attackers could steal authentication cookies, impersonate users, or inject malicious content that could lead to phishing or malware distribution. This could disrupt educational services, damage institutional reputation, and potentially expose sensitive student or staff information. Since the vulnerability is remotely exploitable without authentication, any user accessing a compromised or maliciously crafted link could be affected. The lack of vendor response and patch availability increases the window of exposure. Additionally, if the platform is integrated with other systems or contains administrative interfaces accessible to staff, the impact could extend beyond simple user session compromise. The medium severity rating suggests that while the vulnerability is serious, it is not critical; however, the educational sector's reliance on uninterrupted and secure access to digital platforms elevates the operational risk.

European organizations using Portabilis i-Educar 2.10 should implement immediate mitigations to reduce risk. These include: 1) Applying input validation and output encoding at the web application firewall (WAF) or reverse proxy level to block or sanitize suspicious ref_cod_matricula parameter values; 2) Implementing Content Security Policy (CSP) headers to restrict execution of unauthorized scripts; 3) Educating users to avoid clicking on suspicious links and reporting unusual behavior; 4) Monitoring web server logs for unusual requests targeting /educar_aluno_lst.php with suspicious parameters; 5) Isolating the i-Educar system within a segmented network zone to limit lateral movement; 6) Considering temporary disabling or restricting access to vulnerable functionality if feasible; 7) Engaging with the vendor or community for updates or patches and planning for an upgrade once a fix is available; 8) Employing multi-factor authentication to reduce impact of session hijacking; 9) Regularly backing up critical data to enable recovery in case of compromise.