Falhas do tipo CWE-434

3.246 resultados

Upload irrestrito de arquivo com tipo perigoso

A aplicação aceita upload de arquivos sem validar adequadamente o tipo ou extensão, permitindo que um atacante envie executáveis, scripts ou outros arquivos maliciosos que serão armazenados ou executados no servidor. O risco aumenta se o arquivo for salvo em diretório acessível pela web ou em local onde será processado automaticamente.

Exemplo

Um sistema de upload de 'fotos de perfil' verifica apenas o tamanho do arquivo, mas não valida a extensão. Um atacante envia um arquivo .php disfarçado de imagem; se salvo em /uploads/ acessível via web, ele consegue executar código PHP no servidor ao acessar a URL direta.

Como mitigar

Valide extensões contra uma lista branca (whitelist) de tipos permitidos, verifique a assinatura do arquivo (magic bytes) e não confie apenas no Content-Type do cliente. Armazene uploads fora do diretório web ou configure o servidor para não executar scripts no diretório de uploads.

CVE-2024-29387HIGHprojeqtor up to 11.2.0 was discovered to contain a remote code execution (RCE) vulnerability via the component /view/print.php.EPSS 1.2%CVE-2025-21624CRITICALClipBucket V5 Playlist Cover File Upload to Remote Code ExecutionEPSS 1.2%CVE-2024-28441CRITICALFile Upload vulnerability in magicflue v.7.0 and before allows a remote attacker to execute arbitrary code via a crafted request to the messEPSS 1.2%CVE-2022-45912HIGHAn issue was discovered in Zimbra Collaboration (ZCS) 8.8.15 and 9.0. Remote code execution can occur through ClientUploader by an authenticEPSS 1.2%CVE-2025-4800HIGHMasterStudy LMS Pro <= 4.7.0 - Authenticated (Subscriber+) Arbitrary File UploadEPSS 1.2%CVE-2026-23698HIGHVtiger CRM 8.4.0 Authenticated RCE via Module Import File UploadEPSS 1.2%CVE-2023-28409CRITICALUnrestricted upload of file with dangerous type exists in MW WP Form versions v4.4.2 and earlier, which may allow a remote unauthenticated aEPSS 1.2%CVE-2022-22375HIGHIBM Security Verify Privilege command executionEPSS 1.2%CVE-2022-42154CRITICALAn arbitrary file upload vulnerability in the component /apiadmin/upload/attach of 74cmsSE v3.13.0 allows attackers to execute arbitrary codEPSS 1.2%CVE-2024-9849HIGHReal3D Flipbook Lite – 3D FlipBook, PDF Viewer, PDF Embedder <= 4.8 - Authenticated (Author+) Arbitrary File UploadEPSS 1.2%CVE-2023-6219HIGHBookingPress <= 1.0.76 - Authenticated (Administrator+) Arbitrary File UploadEPSS 1.2%CVE-2024-1069HIGHContact Form Entries <= 1.3.2 - Authenticated (Administrator+) Arbitrary File UploadEPSS 1.2%CVE-2022-50912CRITICALImpressCMS 1.4.4 - Unrestricted File UploadEPSS 1.2%CVE-2024-34555CRITICALWordPress Z-Downloads plugin <= 1.11.3 - Auth. Arbitrary File Upload vulnerabilityEPSS 1.2%CVE-2021-21245CRITICALPre-Auth Arbitrary File UploadEPSS 1.2%CVE-2023-50760HIGHOnline Notice Board System v1.0 - Insecure File UploadEPSS 1.2%CVE-2024-46377CRITICALBest House Rental Management System 1.0 contains an arbitrary file upload vulnerability in the save_settings() function of the file rental/aEPSS 1.2%CVE-2024-0699MEDIUMAI Engine <= 2.1.4 - Authenticated(Editor+) Arbitrary File Upload via add_image_from_urlEPSS 1.2%CVE-2021-26642HIGHXpressEngine file upload vulnerabilityEPSS 1.2%CVE-2021-27428CRITICALGE UR family Unrestricted Upload of File with Dangerous TypeEPSS 1.2%