Weaknesses of type CWE-20

5,453 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-2026-29137MEDIUMLong Subject UntaggingEPSS 0.3%CVE-2023-32641HIGHImproper input validation in firmware for Intel(R) QAT before version QAT20.L.1.0.40-00004 may allow escalation of privilege and denial of sEPSS 0.3%CVE-2026-6790MEDIUMIn Eclipse Jetty, for HTTP/1, HTTP/2 and HTTP/3 requests, there is no strict check that the request authority (host and port) matches what pEPSS 0.3%CVE-2023-24463MEDIUMImproper input validation in some Intel(R) Thunderbolt(TM) DCH drivers for Windows before version 88 may allow an unauthenticated user to poEPSS 0.3%CVE-2026-13851CRITICALInsufficient validation of untrusted input in WebAppInstalls in Google Chrome on Android prior to 150.0.7871.47 allowed a local attacker to EPSS 0.3%CVE-2025-62347MEDIUMHCL iControl was affected by Improper Input Validation vulnerability. It is vulnerable to unexpected system behavior and potential security EPSS 0.3%CVE-2026-23839CRITICALMovary vulnerable to Cross-site Scripting with `?categoryUpdated=` paramEPSS 0.3%CVE-2026-64781MEDIUMThe issue was addressed with improved input validation. This issue is fixed in Safari 26.6.1, iOS 18.7.10 and iPadOS 18.7.10, iOS 26.6.1 andEPSS 0.3%CVE-2024-12355MEDIUMSourceCodester Phone Contact Manager System ContactBook.cpp adding input validationEPSS 0.3%CVE-2026-49214MEDIUMguzzlehttp/psr7 has CRLF Injection via URI Host ComponentEPSS 0.3%CVE-2026-86475MEDIUMAppointment Hour Booking < 1.5.95 - Unauthenticated Booking Capacity Bypass via Multi-Appointment SubmissionEPSS 0.3%CVE-2026-13852CRITICALInsufficient validation of untrusted input in WebAppInstalls in Google Chrome on Android prior to 150.0.7871.47 allowed a local attacker to EPSS 0.3%CVE-2024-41945LOWThe fuels-ts typescript SDK has no awareness of to-be-spent transactionsEPSS 0.3%CVE-2024-28028HIGHImproper input validation in some Intel(R) Neural Compressor software before version v3.0 may allow an unauthenticated user to potentially eEPSS 0.3%CVE-2026-18504MEDIUMfastify vulnerable to schema validation bypass via root primitive coercion mismatchEPSS 0.3%CVE-2026-100647MEDIUMvLLM before 0.29.0 CPU Exhaustion via unbounded cache_saltEPSS 0.3%CVE-2024-4175MEDIUMImproper Input Validation vulnerability in Hyperion Web ServerEPSS 0.3%CVE-2026-10992MEDIUMInsufficient data validation in Animation in Google Chrome prior to 149.0.7827.53 allowed a remote attacker to obtain potentially sensitive EPSS 0.3%CVE-2026-34762LOWElla Core Has Audit Log Falsification via Path/Body IMSI Mismatch in UpdateSubscriberEPSS 0.3%CVE-2026-11007MEDIUMInsufficient validation of untrusted input in WebView in Google Chrome on Android prior to 149.0.7827.53 allowed a remote attacker who had cEPSS 0.3%