Weaknesses of type CWE-434

3,108 results

Upload sem restrição de arquivo com tipo perigoso

Ocorre quando uma aplicação aceita upload de arquivos sem validar adequadamente seu tipo, extensão ou conteúdo. Um atacante pode enviar executáveis, scripts ou outros arquivos maliciosos, que serão armazenados ou executados no servidor, comprometendo sua integridade e segurança.

Example

Um formulário de perfil aceita qualquer arquivo como 'foto do usuário' sem checar extensão ou MIME type. Um atacante envia um arquivo .exe ou .php renomeado como .jpg, que é salvo no diretório web e posteriormente executado quando acessado, permitindo execução de código remoto.

How to mitigate

Valide uploads checando MIME type real (não apenas extensão), restrinja tipos permitidos de forma explícita, armazene arquivos fora da raiz web, desabilite execução de scripts no diretório de upload e considere usar vírus scanner. Implemente whitelist rigorosa, nunca blacklist.

CVE-2026-5704MEDIUMTar: tar: hidden file injection via crafted archivesEPSS 0.4%CVE-2025-54473CRITICALExtension - phoca.cz - Authenticated RCE vulnerability in Phoca Commander component 1.0.0-4.0.0 and 5.0.0-5.0.1 for JoomlaEPSS 0.4%CVE-2025-56263HIGHby-night sms V1.0 has an Arbitrary File Upload vulnerability. The /api/sms/upload/headImg endpoint allows uploading arbitrary files. Users cEPSS 0.4%CVE-2026-45089HIGHDalfox: Unauthenticated Arbitrary File Create/Append via `output` Option in Dalfox Server ModeEPSS 0.4%CVE-2026-4830MEDIUMkalcaddle kodbox Public Share userShare.class.php add privilege escalationEPSS 0.4%CVE-2025-14014CRITICALInsecure File Upload in NTN Informatics' Smart PanelEPSS 0.4%CVE-2025-67077HIGHFile upload vulnerability in Omnispace Agora Project before 25.10 allowing authenticated, or under certain conditions also guest users, via EPSS 0.4%CVE-2026-19210MEDIUMSourceCodester Photo Share Website ajax.php save_upload unrestricted uploadEPSS 0.4%CVE-2025-1590MEDIUMSourceCodester E-Learning System List of Lessons Page index.php unrestricted uploadEPSS 0.4%CVE-2025-49447CRITICALWordPress FW Food Menu <= 6.0.0 - Arbitrary File Upload VulnerabilityEPSS 0.4%CVE-2025-11136MEDIUMYiFang CMS Backend File.php webUploader unrestricted uploadEPSS 0.4%CVE-2025-7895MEDIUMharry0703 MoneyPrinterTurbo File Extension video.py upload_bgm_file unrestricted uploadEPSS 0.4%CVE-2025-49444CRITICALWordPress Reformer for Elementor plugin <= 1.0.5 - Arbitrary File Upload VulnerabilityEPSS 0.4%CVE-2026-78337MEDIUMUnrestricted upload of file with dangerous type in Prospero Flow CRM allows stored cross-site scripting via SVGEPSS 0.4%CVE-2025-67910CRITICALWordPress Contentstudio plugin <= 1.3.7 - Arbitrary File Upload vulnerabilityEPSS 0.4%CVE-2025-7880MEDIUMMetasoft 美特软件 MetaCRM sendsms.jsp unrestricted uploadEPSS 0.4%CVE-2026-34027MEDIUMUpload restriction bypass in Wertheim SafeController Software allows authenticated users to upload arbitrary filesEPSS 0.4%CVE-2026-15539MEDIUMSourceCodester Online Book Store System Book Image Upload Feature index.php books unrestricted uploadEPSS 0.4%CVE-2026-92247MEDIUMsynaptikcms synaptik-cms Admin File Manager file-manager.php rename unrestricted uploadEPSS 0.4%CVE-2025-11354MEDIUMcode-projects Online Hotel Reservation System addslideexec.php unrestricted uploadEPSS 0.4%