EUVD-2026-29187Severity by source
AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Primary rating from GitHub Advisory · only source for this CVE.
CVSS VectorGitHub Advisory
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Lifecycle Timeline
3DescriptionGitHub Advisory
WeGIA is a web manager for charitable institutions. In versions prior to 3.7.0, a reflected Cross-Site Scripting (XSS) vulnerability exists in lista_arquivos_etapa.php due to improper handling of user-supplied input. The id_processo parameter is directly embedded into the HTML without sanitization, allowing attackers to inject arbitrary JavaScript. This can lead to session hijacking, credential theft, or execution of malicious actions in the context of the victim's browser. This vulnerability is fixed in 3.7.0.
AnalysisAI
Reflected cross-site scripting (XSS) in WeGIA versions before 3.7.0 allows unauthenticated remote attackers to inject arbitrary JavaScript via the id_processo parameter in lista_arquivos_etapa.php, enabling session hijacking, credential theft, or malicious actions in victim browsers. User interaction (clicking a crafted link) is required. The vulnerability is fixed in version 3.7.0.
Technical ContextAI
WeGIA is a PHP-based web application for managing charitable institutions. The vulnerability stems from improper input validation and output encoding in the lista_arquivos_etapa.php script, where the id_processo parameter is directly embedded into HTML without sanitization or encoding. This violates CWE-79 (Improper Neutralization of Input During Web Page Generation) and allows attackers to break out of HTML context and execute arbitrary JavaScript in the victim's browser with the same privileges as the authenticated user. The reflected nature means the payload is delivered via URL and not stored server-side.
RemediationAI
Upgrade WeGIA to version 3.7.0 or later, which includes proper input sanitization and output encoding for the id_processo parameter. Organizations unable to upgrade immediately should implement input validation on the server side (allowlist numeric or alphanumeric values for id_processo) and apply output encoding (HTML entity encoding) to all user-supplied parameters before embedding them in HTML. Additionally, enforce Content Security Policy (CSP) headers to restrict inline script execution, reducing the impact of successful XSS injection. Monitor web application logs for suspicious id_processo values containing script tags or JavaScript event handlers.
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External POC / Exploit Code
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