CVE-2025-8541 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 /intranet/public_uf_cad.php file, specifically through improper handling of the 'nome' parameter. An attacker can remotely manipulate this parameter to inject malicious scripts into the web application, which are then executed in the context of users' browsers. This type of vulnerability allows attackers to perform actions such as stealing session cookies, defacing web content, or redirecting users to malicious sites. The vulnerability does not require authentication but does require user interaction (e.g., a user visiting a crafted URL). The CVSS 4.0 base score is 4.8 (medium severity), reflecting network attack vector, low complexity, no privileges required, but user interaction is necessary. The vendor has been contacted but has not responded or provided a patch, and no known exploits are currently in the wild, although public disclosure of the exploit code exists. This increases the risk of exploitation as attackers can leverage the disclosed details to craft attacks against vulnerable deployments. The vulnerability impacts confidentiality and integrity to a limited extent and does not affect availability. The scope is limited to the affected version 2.10 of i-Educar, which is primarily used in educational institutions for managing administrative and academic data.

For European organizations, particularly educational institutions using Portabilis i-Educar 2.10, this vulnerability poses a risk of unauthorized script execution in users' browsers. This can lead to theft of session tokens, enabling attackers to impersonate users, potentially gaining access to sensitive student or staff information. It may also facilitate phishing or malware distribution campaigns targeting the institution's users. While the direct impact on system availability is minimal, the breach of confidentiality and integrity can undermine trust in the institution's IT systems and lead to regulatory non-compliance under GDPR if personal data is compromised. The medium severity rating suggests that while the vulnerability is not critical, it still requires timely remediation to prevent exploitation, especially given the public availability of exploit code and lack of vendor response. European educational organizations with limited cybersecurity resources may be particularly vulnerable to such attacks.

Given the absence of an official patch, organizations should implement immediate compensating controls. These include input validation and output encoding on the 'nome' parameter to neutralize malicious scripts, ideally through web application firewall (WAF) rules tailored to detect and block XSS payloads targeting this parameter. Administrators should restrict access to the vulnerable endpoint to trusted users or networks where feasible. User awareness training should be enhanced to recognize suspicious links and avoid clicking on untrusted URLs. Monitoring web server logs for unusual parameter values or repeated access attempts to /intranet/public_uf_cad.php can help detect exploitation attempts early. Organizations should also consider upgrading to a later, patched version of i-Educar once available or applying custom code fixes if possible. Finally, isolating the i-Educar application environment and enforcing strict session management policies can limit the impact of any successful XSS attacks.