Fallos del tipo CWE-20

5455 resultados

Validação inadequada de entrada

A aplicação recebe dados de fontes externas (usuário, API, arquivo) sem verificar se estão no formato, tamanho ou tipo esperado antes de usá-los. Isso permite que um atacante envie dados malformados ou maliciosos que podem causar erros, corrupção de dados, execução de código ou acesso não autorizado.

Ejemplo

Um formulário que aceita um número de idade sem validar se é um inteiro positivo entre 0 e 150. Um atacante envia idade=-5 ou idade='DROP TABLE users;' via SQL, e o código processa isso diretamente no banco sem sanitização, causando dano.

Cómo mitigar

Valide TODA entrada externa: verificar tipo, tamanho, formato e intervalo permitido antes de usar. Use whitelists (aceitar apenas valores conhecidos como seguros) em vez de blacklists, e aplique sanitização ou prepared statements para dados que vão em queries. Testes de entrada fuzzing também ajudam a encontrar gaps.

CVE-2026-79025MEDIUMImproper input validation in Workers in Google Chrome prior to 152.0.7977.65 allowed a remote attacker who had compromised the renderer procEPSS 0.2%CVE-2026-76033MEDIUMInappropriate implementation in CORS in Google Chrome prior to 151.0.7922.169 allowed a remote attacker who had compromised the renderer proEPSS 0.2%CVE-2026-14150MEDIUMInsufficient validation of untrusted input in Speech in Google Chrome prior to 150.0.7871.47 allowed a remote attacker who had compromised tEPSS 0.2%CVE-2024-21949MEDIUMImproper validation of user input in the NPU driver could allow an attacker to provide a buffer with unexpected size, potentially leading toEPSS 0.2%CVE-2026-13991MEDIUMInsufficient validation of untrusted input in Chrome for iOS in Google Chrome on iOS prior to 150.0.7871.47 allowed a remote attacker to perEPSS 0.2%CVE-2026-17867HIGHInsufficient validation of untrusted input in Dawn in Google Chrome prior to 151.0.7922.72 allowed a remote attacker to potentially perform EPSS 0.2%CVE-2024-25571MEDIUMImproper input validation in some Intel(R) SPS firmware before SPS_E5_06.01.04.059.0 may allow a privileged user to potentially enable deniaEPSS 0.2%CVE-2023-32469HIGH Dell Precision Tower BIOS contains an Improper Input Validation vulnerability. A locally authenticated malicious user with admin privilegesEPSS 0.2%CVE-2026-17741HIGHInsufficient validation of untrusted input in WebView in Google Chrome on Android prior to 151.0.7922.72 allowed a remote attacker to potentEPSS 0.2%CVE-2026-11112CRITICALInsufficient validation of untrusted input in Chromoting in Google Chrome on Linux prior to 149.0.7827.53 allowed a remote attacker who had EPSS 0.2%CVE-2026-11207CRITICALInsufficient validation of untrusted input in Autofill in Google Chrome prior to 149.0.7827.53 allowed a remote attacker to potentially perfEPSS 0.2%CVE-2021-25465LOWAn improper scheme check vulnerability in Samsung Themes prior to version 5.2.01 allows attackers to perform Man-in-the-middle attack.EPSS 0.2%CVE-2026-11070CRITICALInsufficient validation of untrusted input in Chromoting in Google Chrome on Windows prior to 149.0.7827.53 allowed a remote attacker who haEPSS 0.2%CVE-2026-11198CRITICALInsufficient validation of untrusted input in Codecs in Google Chrome prior to 149.0.7827.53 allowed a remote attacker to potentially perforEPSS 0.2%CVE-2023-42776LOWImproper input validation in some Intel(R) SGX DCAP software for Windows before version 1.19.100.3 may allow an authenticateed user to potenEPSS 0.2%CVE-2026-18260MEDIUMDisable Login Page - Moderately critical - Access bypass - SA-CONTRIB-2026-110EPSS 0.2%CVE-2026-91134MEDIUMDiscourse: Block post iframes whose encoded userinfo bypasses the allowed_iframes allowlistEPSS 0.2%CVE-2022-33209HIGHImproper input validation in the firmware for some Intel(R) NUC Laptop Kits before version BC0076 may allow a privileged user to potentiallyEPSS 0.2%CVE-2026-11079HIGHInsufficient validation of untrusted input in Codecs in Google Chrome prior to 149.0.7827.53 allowed a remote attacker to perform an out of EPSS 0.2%CVE-2022-32487HIGHDell BIOS contains an improper input validation vulnerability. A local authenticated malicious user may potentially exploit this vulnerabiliEPSS 0.2%