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-2022-43484HIGHTERASOLUNA Global Framework 1.0.0 (Public review version) and TERASOLUNA Server Framework for Java (Rich) 2.0.0.2 to 2.0.5.1 are vulnerable EPSS 0.4%CVE-2024-34009HIGHmoodle: ReCAPTCHA can be bypassed on the login pageEPSS 0.4%CVE-2024-3172HIGHInsufficient data validation in DevTools in Google Chrome prior to 121.0.6167.85 allowed a remote attacker who convinced a user to engage inEPSS 0.4%CVE-2026-29135MEDIUMWebmail Password Tag Sanitization BypassEPSS 0.4%CVE-2026-56762MEDIUMHono - Missing Cookie Name Validation in setCookie()EPSS 0.4%CVE-2024-36742HIGHAn issue in the oneflow.scatter_nd parameter OneFlow-Inc. Oneflow v0.9.1 allows attackers to cause a Denial of Service (DoS) when index paraEPSS 0.4%CVE-2021-39259MEDIUMA crafted NTFS image can trigger an out-of-bounds access, caused by an unsanitized attribute length in ntfs_inode_lookup_by_name, in NTFS-3GEPSS 0.4%CVE-2025-11135MEDIUMpmTicket Project-Management-Software Cookie class.database.php loadLanguage deserializationEPSS 0.4%CVE-2026-48107MEDIUMRussh: Unchecked keyboard-interactive prompt count in client auth pathEPSS 0.4%CVE-2024-36390HIGHMileSight DeviceHub - CWE-20 Improper Input ValidationEPSS 0.4%CVE-2021-39260MEDIUMA crafted NTFS image can cause an out-of-bounds access in ntfs_inode_sync_standard_information in NTFS-3G < 2021.8.22.EPSS 0.4%CVE-2021-39262MEDIUMA crafted NTFS image can cause an out-of-bounds access in ntfs_decompress in NTFS-3G < 2021.8.22.EPSS 0.4%CVE-2024-36745HIGHAn issue in OneFlow-Inc. Oneflow v0.9.1 allows attackers to cause a Denial of Service (DoS) via inputting a negative value into the oneflow.EPSS 0.4%CVE-2022-33211CRITICALImproper Input Validation in MODEMEPSS 0.4%CVE-2026-24505HIGHDell PowerProtect Data Domain, versions 8.5 through 8.6 contain an improper input validation vulnerability. A high privileged attacker with EPSS 0.4%CVE-2025-22233LOWSpring Framework DataBinder Case Sensitive Match ExceptionEPSS 0.4%CVE-2024-32989LOWInsufficient verification vulnerability in the system sharing pop-up module Impact: Successful exploitation of this vulnerability will affecEPSS 0.4%CVE-2022-22749MEDIUMWhen scanning QR codes, Firefox for Android would have allowed navigation to some URLs that do not point to web content.<br>*This bug only aEPSS 0.4%CVE-2025-30649HIGHJunos OS: MX240, MX480, MX960 with SPC3: An attacker sending specific packets will cause a CPU utilization DoS.EPSS 0.4%CVE-2025-66960HIGHAn issue in ollama v.0.12.10 allows a remote attacker to cause a denial of service via the fs/ggml/gguf.go, function readGGUFV1String reads EPSS 0.4%