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-2026-17926MEDIUMInsufficient validation of untrusted input in DevTools in Google Chrome prior to 151.0.7922.72 allowed a remote attacker who convinced a useEPSS 0.3%CVE-2026-5919MEDIUMInsufficient validation of untrusted input in WebSockets in Google Chrome prior to 147.0.7727.55 allowed a remote attacker who had compromisEPSS 0.3%CVE-2020-13602MEDIUMRemote Denial of Service in LwM2M do_write_op_tlvEPSS 0.3%CVE-2024-32048MEDIUMImproper input validation in the Intel(R) Distribution of OpenVINO(TM) Model Server software before version 2024.0 may allow an unauthenticaEPSS 0.3%CVE-2026-13900MEDIUMInappropriate implementation in Chromecast in Google Chrome prior to 150.0.7871.47 allowed a remote attacker who had compromised the rendereEPSS 0.3%CVE-2024-23577MEDIUMHCL Aftermarket EPC is vulnerable since the application does not have a validation for HOST header and accepts arbitrary hosts when requesteEPSS 0.3%CVE-2025-12942MEDIUMImproper input validation in NETGEAR R6260 and R6850EPSS 0.3%CVE-2026-13962MEDIUMInsufficient data validation in PDF in Google Chrome prior to 150.0.7871.47 allowed a remote attacker who had compromised the renderer proceEPSS 0.3%CVE-2025-23204MEDIUMGraphQl securityAfterResolver not calledEPSS 0.3%CVE-2021-26331—AMD System Management Unit (SMU) contains a potential issue where a malicious user may be able to manipulate mailbox entries leading to arbiEPSS 0.3%CVE-2024-39606MEDIUMImproper input validation in some Intel(R) PROSet/Wireless WiFi and Killerâ„¢ WiFi software for Windows before version 23.80 may allow an unEPSS 0.3%CVE-2025-8662LOWOpenAM (OpenAM Consortium Edition) contains a vulnerability that may cause it to malfunction as a SAML IdP due to a tampered request.This isEPSS 0.3%CVE-2023-1250HIGHCode execution through ACL creationEPSS 0.3%CVE-2021-48007HIGHPocketMine-MP before 3.18.1 Denial of Service via MovePlayerPacketEPSS 0.3%CVE-2026-14066MEDIUMInsufficient validation of untrusted input in Chrome for iOS in Google Chrome on iOS prior to 150.0.7871.47 allowed a remote attacker to bypEPSS 0.3%CVE-2026-85230MEDIUMMISP Dashboard Button Widget Allows Persistent JavaScript URL InjectionEPSS 0.3%CVE-2026-36175MEDIUMAn issue in the U-Boot component of GNCC GP5 v7.1.76 allows physically-proximate attackers to bypass authentication and gain root access viaEPSS 0.3%CVE-2026-56678MEDIUM9Router: Kiro region injection allows authenticated SSRF with Authorization header forwardingEPSS 0.3%CVE-2026-15769HIGHInsufficient validation of untrusted input in Linux Toolkit Theming in Google Chrome on Linux prior to 150.0.7871.125 allowed a remote attacEPSS 0.3%CVE-2026-13850HIGHInsufficient validation of untrusted input in Chrome for iOS in Google Chrome on iOS prior to 150.0.7871.47 allowed a local attacker to execEPSS 0.3%