Weaknesses of type CWE-20

5,888 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-2024-6239HIGHPoppler: pdfinfo: crash in broken documents when using -dests parameterEPSS 0.8%CVE-2026-48769CRITICALIncus has an arbitrary file write on its client due to trusted image hashEPSS 0.8%CVE-2026-48755CRITICALIncus has an argument injection in backup compression algorithm leading to AFW and ACEEPSS 0.8%CVE-2025-9288CRITICALMissing type checks leading to hash rewind and passing on crafted dataEPSS 0.8%CVE-2023-29451MEDIUMDenial of service caused by a bug in the JSON parserEPSS 0.8%CVE-2022-36027MEDIUMSegfault TFLite converter on per-channel quantized transposed convolutions in TensorFlowEPSS 0.8%CVE-2023-29194MEDIUMvitess allows users to create keyspaces that can deny access to already existing keyspacesEPSS 0.8%CVE-2026-54182HIGHbackpack/crud: OS command injection in Stats::makeCurlRequest via attacker-controlled Host header (pre-auth)EPSS 0.8%CVE-2020-2035LOWPAN-OS: URL filtering policy is not enforced on TLS handshakes for decrypted HTTPS sessionsEPSS 0.8%CVE-2025-43253CRITICALThis issue was addressed with improved input validation. This issue is fixed in macOS Sequoia 15.6, macOS Sonoma 14.7.7. A malicious app mayEPSS 0.8%CVE-2023-48226MEDIUMOpenReplay HTML Injection vulnerabilityEPSS 0.8%CVE-2024-28855HIGHZITADEL vulnerable to improper HTML sanitizationEPSS 0.8%CVE-2023-38293HIGHCertain software builds for the Nokia C200 and Nokia C100 Android devices contain a vulnerable, pre-installed app with a package name of comEPSS 0.8%CVE-2024-3101MEDIUMPrivilege Escalation via Improper Input Validation in mintplex-labs/anything-llmEPSS 0.8%CVE-2022-40923MEDIUMA vulnerability in the LIEF::MachO::SegmentCommand::virtual_address function of LIEF v0.12.1 allows attackers to cause a denial of service (EPSS 0.8%CVE-2020-29029HIGHXSS issue due to insufficient sanitization of input fieldEPSS 0.8%CVE-2025-27737HIGHWindows Security Zone Mapping Security Feature Bypass VulnerabilityEPSS 0.8%CVE-2023-50308MEDIUMIBM Db2 denial of serviceEPSS 0.8%CVE-2025-43342CRITICALA correctness issue was addressed with improved checks. This issue is fixed in Safari 26, iOS 18.7 and iPadOS 18.7, iOS 26 and iPadOS 26, maEPSS 0.8%CVE-2025-4377HIGHPath traversal vulnerability in Sparx Pro Cloud Server WebEA webconfig in logview.phpEPSS 0.8%