Weaknesses of type CWE-20

5,455 results

Validação inadequada de entrada

O software recebe dados do usuário ou de fontes externas, mas não verifica ou verifica de forma incompleta se esses dados têm as propriedades necessárias para processar com segurança. Isso permite que entradas malformadas, maliciosas ou inesperadas passem por controles e causem comportamentos indevidos — desde crashes até injeção de código.

Example

Uma aplicação web recebe um parâmetro numérico via GET, mas não valida se é realmente um número inteiro válido antes de usá-lo em uma consulta SQL. Um atacante envia um valor com caracteres especiais (ex: `1' OR '1'='1`), conseguindo injetar código SQL direto no banco de dados.

How to mitigate

Implemente validação rigorosa na entrada: defina o tipo, formato, comprimento e intervalo esperados; rejeite tudo que não se encaixe. Use listas de caracteres permitidos ('whitelist'), escape de dados para o contexto específico (SQL, HTML, URL) e bibliotecas de validação consolidadas. Nunca confie em dados do cliente.

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-2026-79025MEDIUMImproper 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-2026-11689HIGHInsufficient policy enforcement in Passwords in Google Chrome prior to 149.0.7827.103 allowed a remote attacker who had compromised the rendEPSS 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-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-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-2026-13991MEDIUMInsufficient 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-2023-32469HIGH Dell Precision Tower BIOS contains an Improper Input Validation vulnerability. A locally authenticated malicious user with admin privilegesEPSS 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-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-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-2026-11112CRITICALInsufficient 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-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-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-2022-30709LOWImproper input validation check logic vulnerability in SECRIL prior to SMR Jun-2022 Release 1 allows attackers to trigger crash.EPSS 0.2%