CVE-2025-8507 is a cross-site scripting (XSS) vulnerability identified in version 2.9 of Portabilis i-Educar, an educational management software platform. The vulnerability exists in an unspecified function within the file /intranet/educar_funcao_lst.php. Specifically, the issue arises from improper sanitization or validation of the input parameters nm_funcao and abreviatura, which can be manipulated by an attacker to inject malicious scripts. This flaw allows remote attackers to execute arbitrary JavaScript code in the context of the victim's browser without requiring authentication, although user interaction is necessary to trigger the payload. The vulnerability has been publicly disclosed, and while no confirmed exploits in the wild have been reported, the availability of proof-of-concept code increases the risk of exploitation. The vendor was notified but has not responded or issued a patch, leaving affected installations exposed. The CVSS v4.0 base score is 5.1, reflecting a medium severity level, with attack vector network (remote), low attack complexity, no privileges required, but user interaction needed. The impact primarily affects confidentiality and integrity by enabling session hijacking, credential theft, or unauthorized actions performed on behalf of the user. Availability impact is minimal. The vulnerability is limited to version 2.9 of i-Educar, and no mitigations or patches have been officially released to date.

For European organizations, particularly educational institutions or government agencies using Portabilis i-Educar, this vulnerability poses a risk of client-side attacks that can compromise user sessions and data confidentiality. Exploitation could lead to unauthorized access to sensitive student or administrative information, manipulation of educational records, or phishing attacks targeting staff and students. Given the nature of the software, which manages critical educational workflows, successful exploitation could disrupt operations and erode trust in digital education platforms. Although the vulnerability requires user interaction, the widespread use of web browsers and email makes social engineering feasible. The lack of vendor response and patch availability increases exposure time, potentially allowing attackers to develop and deploy exploits. European GDPR regulations heighten the consequences of data breaches, potentially resulting in significant legal and financial penalties if personal data is compromised. Overall, the threat could impact confidentiality and integrity of educational data and user credentials within affected organizations.

Since no official patch is currently available, European organizations should implement immediate compensating controls. These include: 1) Applying strict input validation and output encoding on the affected parameters at the web application firewall (WAF) or reverse proxy level to block malicious script payloads targeting nm_funcao and abreviatura parameters. 2) Enforcing Content Security Policy (CSP) headers to restrict execution of unauthorized scripts in browsers. 3) Conducting user awareness training to reduce the risk of social engineering attacks that trigger XSS payloads. 4) Monitoring web server logs and network traffic for suspicious requests containing script tags or unusual parameter values. 5) Isolating or restricting access to the affected intranet module if feasible until a patch is released. 6) Encouraging the vendor to provide a timely fix and tracking any updates or advisories. 7) Reviewing and hardening session management to limit the impact of session hijacking attempts. These targeted measures go beyond generic advice by focusing on the specific vulnerable parameters and the operational context of i-Educar deployments.