Fallos del tipo CWE-434

3256 resultados

Upload irrestrito de arquivo com tipo perigoso

Ocorre quando a aplicação aceita upload de arquivos sem validar adequadamente o tipo ou extensão, permitindo que um atacante envie executáveis, scripts ou outros arquivos maliciosos. O risco é grave: o arquivo pode ser armazenado em local acessível pela web, executado pelo servidor, ou baixado e executado pela vítima.

Ejemplo

Um formulário de perfil aceita qualquer arquivo como 'foto', sem verificação. Alguém faz upload de um .exe ou .php; se salvo em pasta pública e com permissões erradas, o arquivo pode ser executado pelo servidor ou baixado por outros usuários.

Cómo mitigar

Valide a extensão e o tipo MIME no servidor (nunca apenas no cliente), rejeite extensões perigosas explicitamente, armazene uploads fora da raiz web ou sem permissão de execução, e considere renomear arquivos removendo extensão original. Idealmente, converta imagens para formatos seguros (PNG/JPG) após upload.

CVE-2022-41385CRITICALThe d8s-html package for Python, as distributed on PyPI, included a potential code-execution backdoor inserted by a third party. The backdooEPSS 1.7%CVE-2022-41384CRITICALThe d8s-domains package for Python, as distributed on PyPI, included a potential code-execution backdoor inserted by a third party. The backEPSS 1.7%CVE-2022-42043CRITICALThe d8s-xml package for Python, as distributed on PyPI, included a potential code-execution backdoor inserted by a third party. The backdoorEPSS 1.7%CVE-2022-41380CRITICALThe d8s-yaml package for Python, as distributed on PyPI, included a potential code-execution backdoor inserted by a third party. The backdooEPSS 1.7%CVE-2022-40407HIGHA zip slip vulnerability in the file upload function of Chamilo v1.11 allows attackers to execute arbitrary code via a crafted Zip file.EPSS 1.7%CVE-2012-10042HIGHSflog! CMS 1.0 Arbitrary File Upload RCEEPSS 1.7%CVE-2024-9659CRITICALSchool Management <= 91.5.0 - Unauthenticated Arbitrary File UploadEPSS 1.7%CVE-2021-35002HIGHBMC Track-It! Unrestricted File Upload Remote Code Execution VulnerabilityEPSS 1.7%CVE-2022-44354CRITICALSolarView Compact 4.0 and 5.0 is vulnerable to Unrestricted File Upload via a crafted php file.EPSS 1.7%CVE-2021-24123—PowerPress < 8.3.8 - Authenticated Arbitrary File Upload leading to RCEEPSS 1.6%CVE-2025-3444MEDIUMLocal File InclusionEPSS 1.6%CVE-2022-40037CRITICALAn issue discovered in Rawchen blog-ssm v1.0 allows remote attacker to escalate privileges and execute arbitrary commands via the component EPSS 1.6%CVE-2022-3125—Frontend File Manager < 21.3 - Subscriber+ Arbitrary File UploadEPSS 1.6%CVE-2021-28173CRITICALVangene deltaFlow E-platform - Arbitrary File UploadEPSS 1.6%CVE-2012-10056HIGHPHP Volunteer Management System 1.0.2 Arbitrary File UploadEPSS 1.6%CVE-2021-21355HIGHUnrestricted File Upload in Form FrameworkEPSS 1.6%CVE-2024-31351CRITICALWordPress Copymatic plugin <= 1.6 - Unauthenticated Arbitrary File Upload vulnerabilityEPSS 1.6%CVE-2021-4382HIGHRecently <= 3.0.4 - Arbitrary File Upload to Remote Code ExectutionEPSS 1.6%CVE-2025-3455HIGH1 Click WordPress Migration Plugin – 100% FREE for a limited time <= 2.2 - Missing Authorization to Authenticated (Subscriber+) Arbitrary File UploadEPSS 1.6%CVE-2022-2594—Advanced Custom Fields 5.0-5.12.2 - Unauthenticated File UploadEPSS 1.6%