Falhas do tipo CWE-434

3.097 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-2025-11136MEDIUMYiFang CMS Backend File.php webUploader unrestricted uploadEPSS 0.4%CVE-2026-34027MEDIUMUpload restriction bypass in Wertheim SafeController Software allows authenticated users to upload arbitrary filesEPSS 0.4%CVE-2025-7895MEDIUMharry0703 MoneyPrinterTurbo File Extension video.py upload_bgm_file unrestricted uploadEPSS 0.4%CVE-2025-7880MEDIUMMetasoft 美特软件 MetaCRM sendsms.jsp unrestricted uploadEPSS 0.4%CVE-2025-67910CRITICALWordPress Contentstudio plugin <= 1.3.7 - Arbitrary File Upload vulnerabilityEPSS 0.4%CVE-2025-49447CRITICALWordPress FW Food Menu <= 6.0.0 - Arbitrary File Upload VulnerabilityEPSS 0.4%CVE-2025-49444CRITICALWordPress Reformer for Elementor plugin <= 1.0.5 - Arbitrary File Upload VulnerabilityEPSS 0.4%CVE-2026-92247MEDIUMsynaptikcms synaptik-cms Admin File Manager file-manager.php rename unrestricted uploadEPSS 0.4%CVE-2026-76995MEDIUMSourceCodester Simple Online Food Ordering System ajax.php save_menu unrestricted uploadEPSS 0.4%CVE-2025-12223MEDIUMBdtask Flight Booking Software Package Information package-information unrestricted uploadEPSS 0.4%CVE-2025-11354MEDIUMcode-projects Online Hotel Reservation System addslideexec.php unrestricted uploadEPSS 0.4%CVE-2026-19839MEDIUMSourceCodester Simple Doctors Appointment System save_file.php save_doctor unrestricted uploadEPSS 0.4%CVE-2025-10465HIGHUnrestricted File Upload in Birtech Information Technologies' SensawayEPSS 0.4%CVE-2026-15539MEDIUMSourceCodester Online Book Store System Book Image Upload Feature index.php books unrestricted uploadEPSS 0.4%CVE-2025-1791MEDIUMZorlan SkyCaiji Tool.php fileAction unrestricted uploadEPSS 0.4%CVE-2026-44103MEDIUMJupiCore does not perform validation of firmwareEPSS 0.4%CVE-2026-53909MEDIUMArbitrary File Upload in MCOEPSS 0.4%CVE-2026-42145LOWCoolify: File Upload Without Type or Size Validation in Database Backup RestoreEPSS 0.4%CVE-2022-39019MEDIUMBroken access controls on PDFtron WebviewerUI in M-Files HubshareEPSS 0.4%CVE-2025-14800HIGHRedirection for Contact Form 7 <= 3.2.7 - Unauthenticated Arbitrary File Copy via move_file_to_uploadEPSS 0.4%