Fallos del tipo CWE-20

5385 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-2021-29425—Possible limited path traversal vulnerabily in Apache Commons IOEPSS 10.2%CVE-2020-5260CRITICALmalicious URLs may cause Git to present stored credentials to the wrong serverEPSS 10.0%CVE-2022-23626HIGHInsufficient file checks in m1k1o/blogEPSS 9.9%CVE-2025-34102CRITICALCryptoLog Unauthenticated RCE via SQL Injection and Command InjectionEPSS 9.6%CVE-2023-29464HIGHRockwell Automation FactoryTalk Linx Vulnerable to Denial-of-Service and Information DisclosureEPSS 9.6%CVE-2025-6558HIGHInsufficient validation of untrusted input in ANGLE and GPU in Google Chrome prior to 138.0.7204.157 allowed a remote attacker to potentiallEPSS 9.6%KEVCVE-2024-30087HIGHWin32k Elevation of Privilege VulnerabilityEPSS 9.5%CVE-2026-40871HIGHmailcow: dockerized vulnerable to Second Order SQL Injection in quarantine category via APIEPSS 9.3%CVE-2021-43779CRITICALRemote Command Execution vulnerabilityEPSS 9.1%CVE-2015-2291HIGH(1) IQVW32.sys before 1.3.1.0 and (2) IQVW64.sys before 1.3.1.0 in the Intel Ethernet diagnostics driver for Windows allows local users to cEPSS 9.0%KEVCVE-2022-0073HIGHAuthenticated Remote Code Execution in OpenLiteSpeed Web ServerEPSS 8.8%CVE-2015-9235—In jsonwebtoken node module before 4.2.2 it is possible for an attacker to bypass verification when a token digitally signed with an asymmetEPSS 8.7%CVE-2018-0304—A vulnerability in the Cisco Fabric Services component of Cisco FXOS Software and Cisco NX-OS Software could allow an unauthenticated, remotEPSS 8.6%CVE-2024-38189HIGHMicrosoft Project Remote Code Execution VulnerabilityEPSS 8.2%KEVCVE-2025-52905HIGHTOTOLINK X6000R Argument Injection VulnerabilityEPSS 8.1%CVE-2023-34152CRITICALA vulnerability was found in ImageMagick. This security flaw cause a remote code execution vulnerability in OpenBlob with --enable-pipes conEPSS 8.0%CVE-2021-25741HIGHSymlink Exchange Can Allow Host Filesystem AccessEPSS 8.0%CVE-2020-29075HIGHPDF Injection BlackHat TalkEPSS 7.9%CVE-2023-36731HIGHWin32k Elevation of Privilege VulnerabilityEPSS 7.8%CVE-2018-0172HIGHA vulnerability in the DHCP option 82 encapsulation functionality of Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticEPSS 7.8%KEV