CVE-2025-7111 is a cross-site scripting (XSS) vulnerability identified in Portabilis i-Educar version 2.9.0, specifically within the Course Module component accessed via the /intranet/educar_curso_det.php endpoint. The vulnerability arises from improper sanitization or validation of the 'cod_curso' parameter, which allows an attacker to inject malicious scripts remotely. The vulnerability is classified as problematic and has a CVSS 4.0 base score of 5.1, indicating a medium severity level. The attack vector is network-based (AV:N), with low attack complexity (AC:L), no privileges required (PR:L indicates low privileges, but the vector states no privileges needed), and user interaction is required (UI:P). The impact primarily affects the integrity of the user interface and potentially the confidentiality of session data, as the injected scripts could execute in the context of the victim's browser. The vendor was notified but did not respond, and no patches have been released at the time of disclosure. Although no known exploits are currently in the wild, the public disclosure of the exploit code increases the risk of exploitation. This vulnerability could be leveraged to perform session hijacking, defacement, or phishing attacks targeting users of the i-Educar platform.

For European organizations using Portabilis i-Educar 2.9.0, particularly educational institutions, this vulnerability poses a risk to the confidentiality and integrity of user data and the trustworthiness of the platform. Successful exploitation could lead to unauthorized script execution in users' browsers, enabling attackers to steal session cookies, perform actions on behalf of users, or deliver malicious payloads. This could disrupt educational activities, compromise sensitive student or staff information, and damage institutional reputation. Given the remote exploitability and the public availability of exploit details, the threat is heightened. The impact is especially significant for organizations relying on i-Educar for managing courses and student information, as attackers could target administrators or educators with privileged access. Additionally, the lack of vendor response and patches increases the window of exposure for European entities.

Organizations should immediately audit their use of Portabilis i-Educar 2.9.0 and assess exposure to the vulnerable endpoint. Practical mitigation steps include: 1) Implementing web application firewall (WAF) rules to detect and block malicious payloads targeting the 'cod_curso' parameter, focusing on common XSS attack patterns. 2) Applying input validation and output encoding at the application level if source code access is available, sanitizing all user-supplied inputs before rendering. 3) Restricting access to the intranet module via network segmentation or VPN to limit exposure to trusted users only. 4) Monitoring logs for unusual requests or error patterns related to the vulnerable endpoint. 5) Educating users about phishing and suspicious links to reduce the impact of potential XSS-based social engineering. 6) Engaging with the vendor or community to track patch releases and apply updates promptly once available. 7) Considering temporary migration to alternative platforms if remediation is not feasible in the short term.