Weaknesses of type CWE-20

5,429 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-2025-66921HIGHA Cross-site scripting (XSS) vulnerability in Create/Update Item(s) Module in Open Source Point of Sale v3.4.1 allows remote attackers to inEPSS 0.6%CVE-2026-46453MEDIUMApache Camel: Camel-Elasticsearch-Rest-Client: Exchange header constants without the Camel prefix bypass inbound HTTP header filtering, allowing untrusted clients to override the Elasticsearch query and operationEPSS 0.6%CVE-2024-2339HIGHImproper Input Validation in PostgreSQL Anonymizer 1.2 allows table owner to gain superuser privileges via masking ruleEPSS 0.6%CVE-2025-66923HIGHA Cross-site scripting (XSS) vulnerability in Create/Update Customer(s) in Open Source Point of Sale v3.4.1 allows remote attackers to injecEPSS 0.6%CVE-2022-37395HIGHA Huawei device has an input verification vulnerability. Successful exploitation of this vulnerability may lead to DoS attacks.Affected prodEPSS 0.6%CVE-2024-6207HIGHCVE 2021-22681 https://www.rockwellautomation.com/en-us/trust-center/security-advisories/advisory.PN1550.html  and send a specially crafted EPSS 0.6%CVE-2024-3372HIGHMongoDB Server may have unexpected application behaviour due to invalid BSONEPSS 0.5%CVE-2024-25974MEDIUMStored Cross-Site Scripting (XSS) within the Media CenterEPSS 0.5%CVE-2024-45422MEDIUMZoom Apps - Improper Input ValidationEPSS 0.5%CVE-2023-20232MEDIUMA vulnerability in the Tomcat implementation for Cisco Unified Contact Center Express (Unified CCX) could allow an unauthenticated, remote aEPSS 0.5%CVE-2025-61546CRITICALThere is an issue on the /PSP/appNET/Store/CartV12.aspx/GetUnitPrice endpoint in edu Business Solutions Print Shop Pro WebDesk version 18.34EPSS 0.5%CVE-2023-21516HIGHXSS vulnerability from InstantPlay in Galaxy Store prior to version 4.5.49.8 allows attackers to execute javascript API to install APK from EPSS 0.5%CVE-2023-29359HIGHGDI Elevation of Privilege VulnerabilityEPSS 0.5%CVE-2020-5131—SonicWall NetExtender Windows client vulnerable to arbitrary file write vulnerability, this allows attacker to overwrite a DLL and execute cEPSS 0.5%CVE-2025-34047HIGHLeadsec VPN Path Traversal Arbitrary File ReadEPSS 0.5%CVE-2023-4586HIGHHotrod-client: hot rod client does not enable hostname validation when using tls that lead to a mitm attackEPSS 0.5%CVE-2026-43935HIGHe107: Host Header Injection in e107 password reset enables phishingEPSS 0.5%CVE-2023-22452MEDIUMImproper Input Validation in kenny2automateEPSS 0.5%CVE-2024-3584CRITICALPath Traversal in qdrant/qdrantEPSS 0.5%CVE-2022-38385HIGH IBM Cloud Pak for Security (CP4S) 1.10.0.0 through 1.10.2.0 could allow an authenticated user to obtain highly sensitive information or perEPSS 0.5%