Fallos del tipo CWE-20

5450 resultados

Validação inadequada de entrada

A aplicação recebe dados de fontes externas (usuário, API, arquivo) sem verificar se estão no formato, tamanho ou tipo esperado antes de usá-los. Isso permite que um atacante envie dados malformados ou maliciosos que podem causar erros, corrupção de dados, execução de código ou acesso não autorizado.

Ejemplo

Um formulário que aceita um número de idade sem validar se é um inteiro positivo entre 0 e 150. Um atacante envia idade=-5 ou idade='DROP TABLE users;' via SQL, e o código processa isso diretamente no banco sem sanitização, causando dano.

Cómo mitigar

Valide TODA entrada externa: verificar tipo, tamanho, formato e intervalo permitido antes de usar. Use whitelists (aceitar apenas valores conhecidos como seguros) em vez de blacklists, e aplique sanitização ou prepared statements para dados que vão em queries. Testes de entrada fuzzing também ajudam a encontrar gaps.

CVE-2023-6738MEDIUMPageLayer <= 1.7.8 - Authenticated(Contributor+) Stored Cross-Site Scripting via meta fieldsEPSS 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-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-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-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-2026-67436HIGHLinuxfabrik monitoring-plugins: SSRF and auth-token disclosure via unvalidated @odata.id link in redfish-* pluginsEPSS 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-2025-11933LOWDoS Vulnerability in wolfSSL TLS 1.3 CKS ExtensionEPSS 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-2026-22255HIGHiccDEV has heap-buffer-overflow in CIccCLUT::Init() at IccProfLib/IccTagLut.cppEPSS 0.4%CVE-2026-0543MEDIUMImproper Input Validation in Kibana Email Connector Leading to Excessive AllocationEPSS 0.4%CVE-2026-41727MEDIUMIn Spring for Apache Kafka, forged retry topic headers subvert retry routing and backoff behaviorEPSS 0.4%CVE-2025-67484NONEAction API xslt option allows JavaScript execution by administrators who are not interface administratorsEPSS 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-2025-9207MEDIUMTI WooCommerce Wishlist <= 2.10.0 - Unauthenticated HTML InjectionEPSS 0.4%CVE-2025-20227MEDIUMInformation Disclosure through external content warning modal dialog box bypass in Splunk Enterprise Dashboard StudioEPSS 0.4%CVE-2026-29135MEDIUMWebmail Password Tag Sanitization BypassEPSS 0.4%