Falhas do tipo CWE-20

5.450 resultados

Validação inadequada de entrada

A aplicação recebe dados do usuário ou de fontes externas mas não valida (ou valida mal) se esses dados têm as propriedades necessárias para processamento seguro. Isso abre porta para injeção de código, buffer overflow, lógica corrompida e outros ataques que exploram dados malformados ou maliciosos.

Exemplo

Um formulário web aceita um CPF sem verificar se tem 11 dígitos numéricos, ou um app móvel recebe um ID de usuário em JSON sem confirmar se é um inteiro — atacantes exploram isso para acessar dados de outros usuários, executar queries SQL maliciosas ou causar erro de processamento.

Como mitigar

Implemente validação rigorosa na entrada: verifique tipo, comprimento, formato, intervalo de valores permitidos. Use whitelist (aceitar só o que você sabe ser seguro) em vez de blacklist. Valide tanto no cliente quanto no servidor, e use bibliotecas de parsing seguro para formatos complexos (XML, JSON).

CVE-2026-56325LOWCapgo - App ID Confusion via ILIKE Wildcard in Preview Subdomain LookupEPSS 0.3%CVE-2026-94091MEDIUMpiskvorky gensim Model Loader utils.py load deserializationEPSS 0.3%CVE-2026-59650CRITICALMTI/A0 DH agreement exponentiates unvalidated peer valueEPSS 0.3%CVE-2024-20327HIGHA vulnerability in the PPP over Ethernet (PPPoE) termination feature of Cisco IOS XR Software for Cisco ASR 9000 Series Aggregation ServicesEPSS 0.3%CVE-2026-65891MEDIUMJoomla Extension - joomlacontenteditor.net - Creation of hidden files and unintended file overwrite via rename function in Joomla Content Editor (JCE) < 2.9.99.10EPSS 0.3%CVE-2025-66451MEDIUMLibreChat's Improper Input Validation in Prompt Creation API Enables Unauthorized Permission ChangesEPSS 0.3%CVE-2022-36448HIGHAn issue was discovered in Insyde InsydeH2O with kernel 5.0 through 5.5. There is an SMM memory corruption vulnerability in the Software SMIEPSS 0.3%CVE-2025-52547HIGHDoS to the application servicesEPSS 0.3%CVE-2023-1789MEDIUMImproper Input Validation in firefly-iii/firefly-iiiEPSS 0.3%CVE-2022-29201MEDIUMMissing validation in `QuantizedConv2D` results in undefined behavior in TensorFlowEPSS 0.3%CVE-2023-46763—Vulnerability of background app permission management in the framework module. Successful exploitation of this vulnerability may cause backgEPSS 0.3%CVE-2025-61768MEDIUMKuno CMS Vulnerable to Server-Side Request Forgery (SSRF) via Unsafe SVG UploadEPSS 0.3%CVE-2026-34980MEDIUMOpenPrinting CUPS: Shared PostScript queue lets anonymous Print-Job requests reach `lp` code execution over the networkEPSS 0.3%CVE-2022-44553MEDIUMThe HiView module has a vulnerability of not filtering third-party apps out when the HiView module traverses to invoke the system provider. EPSS 0.3%CVE-2026-1577MEDIUMIBM® Db2® is vulnerable to a denial of service with a specially crafted query involving multiple subqueriesEPSS 0.3%CVE-2026-100902HIGHBarco ClickShare CX-20 Gen2 Wallpaper Upload wallpaper improper validation of syntactic correctness of inputEPSS 0.3%CVE-2026-8714HIGHDenial-of-Service Vulnerability in RTSP Input Handling on TP-Link's Tapo C520WSEPSS 0.3%CVE-2024-13798MEDIUMPost Grid and Gutenberg Blocks – ComboBlocks <= 2.3.5 - Unauthenticated Paid Order CreationEPSS 0.3%CVE-2026-49234HIGHRoutinator crashes on specifically crafted ASN strings in the APIEPSS 0.3%CVE-2026-69352HIGHWindows Biometric Service Elevation of Privilege VulnerabilityEPSS 0.3%