CVE-2025-53525 is a reflected Cross-Site Scripting (XSS) vulnerability identified in the WeGIA web application, a management platform designed for charitable institutions developed by LabRedesCefetRJ. The vulnerability exists in the profile_familiar.php endpoint, specifically in the handling of the id_dependente parameter. Due to improper neutralization of input during web page generation (CWE-79), an attacker can inject malicious JavaScript code that is reflected back to the user without proper sanitization or encoding. This allows execution of arbitrary scripts in the context of the victim's browser session. The vulnerability affects all versions prior to 3.4.3, where the issue has been fixed. The CVSS 4.0 base score is 2.0, indicating a low severity primarily because exploitation requires user interaction (UI:A), no privileges or authentication are needed (PR:N, AT:N), and the impact on confidentiality, integrity, and availability is minimal (VC:N, VI:N, VA:N). The attack vector is network-based (AV:N), and the scope is limited (S:I). No known exploits are currently reported in the wild. The vulnerability could be leveraged in phishing or social engineering attacks to steal session cookies, perform actions on behalf of users, or deliver malware, but the impact is constrained by the nature of the application and the reflected XSS vector.

For European organizations using WeGIA to manage charitable institutions, this vulnerability could lead to targeted attacks against users of the platform, such as staff or volunteers. Successful exploitation could result in session hijacking, unauthorized actions performed on behalf of users, or delivery of malicious payloads via the victim's browser. While the direct impact on system integrity or data confidentiality is limited, the reputational damage and potential data exposure from compromised user sessions could be significant, especially for organizations handling sensitive donor or beneficiary information. Additionally, exploitation could facilitate further attacks within the organization's network if users have elevated privileges. Given the low CVSS score and lack of known exploits, the immediate risk is low, but the vulnerability should not be ignored due to the sensitive nature of charitable institution data and the potential for social engineering attacks.

Organizations should promptly upgrade WeGIA installations to version 3.4.3 or later, where the vulnerability is patched. In addition to patching, implement Content Security Policy (CSP) headers to restrict the execution of unauthorized scripts and reduce the impact of potential XSS attacks. Input validation and output encoding should be enforced on all user-supplied data, especially parameters reflected in responses. Security teams should monitor web application logs for suspicious requests targeting the id_dependente parameter. User awareness training should emphasize caution with unsolicited links or emails that could exploit reflected XSS vulnerabilities. Where possible, implement multi-factor authentication (MFA) to reduce the impact of session hijacking. Finally, conduct regular security assessments and penetration testing on the WeGIA platform to identify and remediate similar issues proactively.