Weaknesses of type CWE-20

5,432 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-2025-2376MEDIUMviames Pair Framework PHP Object UserRemember.php getCookieContent deserializationEPSS 0.5%CVE-2026-30523MEDIUMA Business Logic vulnerability exists in SourceCodester Loan Management System v1.0 due to the lack of proper input validation. The applicatEPSS 0.5%CVE-2017-12301—A vulnerability in the Python scripting subsystem of Cisco NX-OS Software could allow an authenticated, local attacker to escape the Python EPSS 0.5%CVE-2026-42387MEDIUMInsufficient input validation in ZoneToCacheEPSS 0.5%CVE-2026-42388MEDIUMMissing input validation for catalog zonesEPSS 0.5%CVE-2026-58292HIGHMicrosoft Edge (Chromium-based) Remote Code Execution VulnerabilityEPSS 0.5%CVE-2025-7060LOWMonitorr Installer mkdbajax.php input validationEPSS 0.5%CVE-2025-50489HIGHImproper session invalidation in the component /srms/change-password.php of PHPGurukul Student Result Management System v2.0 allows attackerEPSS 0.5%CVE-2024-21304MEDIUMTrusted Compute Base Elevation of Privilege VulnerabilityEPSS 0.5%CVE-2023-0011HIGHCommand Execution through Serial Interface of u-blox TOBY-L2EPSS 0.5%CVE-2026-25723HIGHClaude Code Vulnerable to Command Injection via Piped sed Command Bypasses File Write RestrictionsEPSS 0.5%CVE-2024-45236HIGHAn issue was discovered in Fort before 1.6.3. A malicious RPKI repository that descends from a (trusted) Trust Anchor can serve (via rsync oEPSS 0.5%CVE-2025-49081MEDIUMInput validation vulnerability in the Secure Access prior to version 13.55EPSS 0.5%CVE-2026-69198MEDIUMip-address: a CIDR suffix on the parsed address suppresses special-use classification and can bypass SSRF and trust-boundary checksEPSS 0.5%CVE-2020-26193HIGHDell EMC PowerScale OneFS versions 8.1.0 - 9.1.0 contain an improper input validation vulnerability. A user with the ISI_PRIV_CLUSTER privilEPSS 0.5%CVE-2023-41316MEDIUMHTML Injection with email in TolgeeEPSS 0.5%CVE-2025-69251MEDIUMfree5GC has Improper Input Validation in UDM, Leading to Information ExposureEPSS 0.5%CVE-2024-4003MEDIUMEssential Addons for Elementor – Best Elementor Templates, Widgets, Kits & WooCommerce Builders <= 5.9.15 - Authenticated (Contributor+) Stored Cross-Site ScriptingEPSS 0.5%CVE-2022-22243MEDIUMJunos OS: XPath Injection vulnerability in J-WebEPSS 0.5%CVE-2026-7165CRITICALMultiple vulnerabilities in the Assassin game by GaudireEPSS 0.5%