Weaknesses of type CWE-20

5,439 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-2024-2027MEDIUMReal Media Library: Media Library Folder & File Manager <= 4.22.7 - Authenticated (Contributor+) Stored Cross-Site ScriptingEPSS 0.4%CVE-2021-39253MEDIUMA crafted NTFS image can cause an out-of-bounds read in ntfs_runlists_merge_i in NTFS-3G < 2021.8.22.EPSS 0.4%CVE-2024-8445MEDIUM389-ds-base: server crash while modifying `userpassword` using malformed input (incomplete fix for cve-2024-2199)EPSS 0.4%CVE-2024-3747MEDIUMBlocksy <= 2.0.39 - Authenticated (Contributor+) Stored Cross-Site Scripting via About Me blockEPSS 0.4%CVE-2025-66902HIGHAn input validation issue in in Pithikos websocket-server v.0.6.4 allows a remote attacker to obtain sensitive information or cause unexpectEPSS 0.4%CVE-2025-71003HIGHAn input validation vulnerability in the flow.arange() component of OneFlow v0.9.0 allows attackers to cause a Denial of Service (DoS) via aEPSS 0.4%CVE-2023-28374MEDIUMImproper input validation for some Intel(R) PROSet/Wireless and Intel(R) Killer(TM) Wi-Fi software before version 22.240 may allow an unauthEPSS 0.4%CVE-2025-13319HIGHAuthenticated SQL injection in API - Digi On-Prem ManagerEPSS 0.4%CVE-2025-11933LOWDoS Vulnerability in wolfSSL TLS 1.3 CKS ExtensionEPSS 0.4%CVE-2019-14904—A flaw was found in the solaris_zone module from the Ansible Community modules. When setting the name for the zone on the Solaris host, the EPSS 0.4%CVE-2021-39258MEDIUMA crafted NTFS image can cause out-of-bounds reads in ntfs_attr_find and ntfs_external_attr_find in NTFS-3G < 2021.8.22.EPSS 0.4%CVE-2026-0543MEDIUMImproper Input Validation in Kibana Email Connector Leading to Excessive AllocationEPSS 0.4%CVE-2026-57600HIGHInsufficient validation of input parameters in the firmware of some Hikvision cameras allows unauthenticated attackers to retrieve partial sEPSS 0.4%CVE-2021-39255MEDIUMA crafted NTFS image can trigger an out-of-bounds read, caused by an invalid attribute in ntfs_attr_find_in_attrdef, in NTFS-3G < 2021.8.22.EPSS 0.4%CVE-2026-30760HIGHAn issue in SourceBans Material Admin before v.1.1.6 (3ecd95e) allows attackers to manipulate arbitrary user data in the web app via a craftEPSS 0.4%CVE-2026-67436HIGHLinuxfabrik monitoring-plugins: SSRF and auth-token disclosure via unvalidated @odata.id link in redfish-* pluginsEPSS 0.4%CVE-2026-61160HIGHVulnerability in the Oracle Commerce Guided Search / Oracle Commerce Experience Manager product of Oracle Commerce (component: Experience MaEPSS 0.4%CVE-2026-41727MEDIUMIn Spring for Apache Kafka, forged retry topic headers subvert retry routing and backoff behaviorEPSS 0.4%CVE-2025-20227MEDIUMInformation Disclosure through external content warning modal dialog box bypass in Splunk Enterprise Dashboard StudioEPSS 0.4%CVE-2025-67484NONEAction API xslt option allows JavaScript execution by administrators who are not interface administratorsEPSS 0.4%