Fallos del tipo CWE-20

5418 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-2022-45470HIGHApache Hama allows XSS and information disclosureEPSS 1.3%CVE-2019-19337MEDIUMA flaw was found in Red Hat Ceph Storage version 3 in the way the Ceph RADOS Gateway daemon handles S3 requests. An authenticated attacker cEPSS 1.3%CVE-2023-24807HIGHUndici vulnerable to Regular Expression Denial of Service in HeadersEPSS 1.3%CVE-2020-15170HIGHMissing access control in apollo-adminserviceEPSS 1.3%CVE-2021-3970MEDIUMA potential vulnerability in LenovoVariable SMI Handler due to insufficient validation in some Lenovo Notebook models BIOS may allow an attaEPSS 1.3%CVE-2020-8568MEDIUMKubernetes Secrets Store CSI Driver sync/rotate directory traversalEPSS 1.3%CVE-2022-20679MEDIUMCisco IOS XE Software IPSec Denial of Service VulnerabilityEPSS 1.3%CVE-2019-12706MEDIUMCisco Email Security Appliance Filter Bypass VulnerabilityEPSS 1.3%CVE-2023-24816MEDIUMset_term_title command injection in ipythonEPSS 1.3%CVE-2022-29897CRITICALRemote Code Execution in all versions of various RAD-ISM-900-EN-* devices by PHOENIX CONTACTEPSS 1.3%CVE-2022-47192HIGHAdmin password reset via file upload vulnerability in Generex CS141EPSS 1.3%CVE-2018-1051—It was found that the fix for CVE-2016-9606 in versions 3.0.22 and 3.1.2 was incomplete and Yaml unmarshalling in Resteasy is still possibleEPSS 1.3%CVE-2023-48693HIGHAzure RTOS ThreadX Remote Code Execution VulnerabilityEPSS 1.3%CVE-2021-3910MEDIUMNUL character in ROA causes OctoRPKI to crashEPSS 1.3%CVE-2021-1305HIGHCisco SD-WAN vManage Authorization Bypass VulnerabilitiesEPSS 1.3%CVE-2022-24846CRITICALUnchecked JNDI lookups in GeoWebCacheEPSS 1.3%CVE-2026-48277CRITICALColdFusion | Improper Input Validation (CWE-20)EPSS 1.3%CVE-2017-2674MEDIUMJBoss BRMS 6 and BPM Suite 6 before 6.4.3 are vulnerable to a stored XSS via several lists in Business Central. The flaw is due to lack of sEPSS 1.3%CVE-2025-31208HIGHThe issue was addressed with improved checks. This issue is fixed in iOS 18.5 and iPadOS 18.5, iPadOS 17.7.7, macOS Sequoia 15.5, macOS SonoEPSS 1.3%CVE-2026-77539CRITICALA malicious actor with access to the network and high privileges could exploit an Improper Input Validation vulnerability found in UniFi OS EPSS 1.3%