Weaknesses of type CWE-20

5,455 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-2025-54564HIGHuploadsm in ChargePoint Home Flex 5.5.4.13 does not validate a user-controlled string for bz2 decompression, which allows command execution EPSS 0.2%CVE-2026-21502MEDIUMNULL Pointer Dereference in iccDEV XML Tag ParserEPSS 0.2%CVE-2025-62525HIGHOpenWrt vulnerable to local privilage escalationEPSS 0.2%CVE-2023-0615MEDIUMA memory leak flaw and potential divide by zero and Integer overflow was found in the Linux kernel V4L2 and vivid test code functionality. TEPSS 0.2%CVE-2026-17414HIGHPower System Improper Input ValidationEPSS 0.2%CVE-2026-21497MEDIUMNULL Pointer Dereference in iccDEV Unknown Tag ParserEPSS 0.2%CVE-2022-20470HIGHIn bindRemoteViewsService of AppWidgetServiceImpl.java, there is a possible way to bypass background activity launch due to improper input vEPSS 0.2%CVE-2026-21498MEDIUMNULL Pointer Dereference in iccDEV XML Calculator ParserEPSS 0.2%CVE-2024-27378MEDIUMAn issue was discovered in Samsung Mobile Processor Exynos 980, Exynos 850, Exynos 1280, Exynos 1380, and Exynos 1330. In the function slsi_EPSS 0.2%CVE-2026-21496MEDIUMNULL Pointer Dereference in iccDEV Signature ParserEPSS 0.2%CVE-2026-21499MEDIUMNULL Pointer Dereference in iccDEV XML ParserEPSS 0.2%CVE-2026-21503MEDIUMiccDEV has Undefined Behavior - Null Pointer Passed to memcpy() in CIccTagSparseMatrixArrayEPSS 0.2%CVE-2026-21506MEDIUMiccDEV is Vulnerable to Null Pointer Dereference in CIccProfileXml::ParseBasic() Leading to Denial of ServiceEPSS 0.2%CVE-2026-11199MEDIUMInappropriate implementation in WebRTC in Google Chrome prior to 149.0.7827.53 allowed an attacker in a privileged network position to leak EPSS 0.2%CVE-2025-50674HIGHAn issue was discovered in the changePassword method in file /usr/share/php/openmediavault/system/user.inc in OpenMediaVault 7.4.17 allowingEPSS 0.2%CVE-2022-4573MEDIUM An SMI handler input validation vulnerability in the ThinkPad X1 Fold Gen 1 could allow an attacker with local access and elevated privilegEPSS 0.2%CVE-2026-16642MEDIUMEmail Login OTP - Critical - Unsupported - SA-CONTRIB-2026-085EPSS 0.2%CVE-2026-18261MEDIUMPowerful Surveys - Critical - Unsupported - SA-CONTRIB-2026-092EPSS 0.2%CVE-2023-34086HIGHImproper input validation in some Intel(R) NUC BIOS firmware may allow a privileged user to potentially enable escalation of privilege via lEPSS 0.2%CVE-2022-43875MEDIUMIBM Financial Transaction Manager for SWIFT Services for Multiplatforms denial of serviceEPSS 0.2%