Falhas do tipo CWE-184

159 resultados

Lista incompleta de entradas bloqueadas

Quando um aplicativo tenta bloquear entradas perigosas (como caracteres especiais, palavras-chave ou padrões maliciosos), mas a lista de bloqueio é incompleta ou mal pensada, um atacante consegue contornar a proteção usando variações não previstas. É a falsa sensação de segurança: o desenvolvedor acredita estar protegido, mas deixa brechas.

Exemplo

Um formulário web bloqueia a palavra 'script' para evitar XSS, mas não bloqueia 'sCrIpT' com letras maiúsculas, ou '\x3cscript' em hexadecimal. Um atacante injeta uma dessas variações e consegue executar JavaScript malicioso, burlando a proteção.

Como mitigar

Em vez de manter listas de bloqueio (blacklist), use whitelist: aceite apenas entradas conhecidas como seguras, validate com regex rigorosa e, quando possível, escape ou sanitize output com bibliotecas consolidadas (DOMPurify, OWASP, etc). Prefira validação estruturada sobre verificações ad-hoc.

CVE-2026-41264CRITICALFlowise: CSV Agent Prompt Injection Remote Code Execution VulnerabilityEPSS 1.4%CVE-2021-25737LOWHoles in EndpointSlice Validation Enable Host Network HijackEPSS 1.3%CVE-2018-16863HIGHIt was found that RHSA-2018:2918 did not fully fix CVE-2018-16509. An attacker could possibly exploit another variant of the flaw and bypassEPSS 1.2%CVE-2026-25951HIGHFUXA has a Path Traversal Sanitization BypassEPSS 1.2%CVE-2022-32763CRITICALA cross-site scripting (xss) sanitization vulnerability bypass exists in the SanitizeHtml functionality of Lansweeper lansweeper 10.1.1.0. AEPSS 1.1%CVE-2021-1133MEDIUMCisco Data Center Network Manager REST API VulnerabilitiesEPSS 1.1%CVE-2025-48732HIGHAn incomplete blacklist exists in the .htaccess sample of WWBN AVideo 14.4 and dev master commit 8a8954ff. A specially crafted HTTP request EPSS 1.1%CVE-2022-35962HIGHCrafted link in Zulip message can cause disclosure of credentialsEPSS 0.9%CVE-2026-49869CRITICALKestra: Unauthenticated Remote Code Execution via Authentication Bypass in `AuthenticationFilter`EPSS 0.9%CVE-2026-33396CRITICALOneUptime has sandbox escape in Synthetic Monitor Playwright runtime allows project members to execute arbitrary commands on ProbeEPSS 0.8%CVE-2024-51745LOWWasmtime doesn't fully sandbox all the Windows device filenamesEPSS 0.8%CVE-2020-3384HIGHCisco Data Center Network Manager Command Injection VulnerabilityEPSS 0.8%CVE-2025-29822HIGHMicrosoft OneNote Security Feature Bypass VulnerabilityEPSS 0.8%CVE-2026-54512HIGHjackson-databind: PolymorphicTypeValidator bypass via generic type parameters allows arbitrary class instantiationEPSS 0.8%CVE-2025-71323CRITICALpicklescan - Remote Code Execution via Unblocked ctypes ModuleEPSS 0.8%CVE-2026-56315CRITICALpicklescan - Remote Code Execution via Unblocked Standard Library ModulesEPSS 0.8%CVE-2022-23536MEDIUMAlertmanager can expose local files content via specially crafted configEPSS 0.8%CVE-2026-54513HIGHjackson-databind: Array subtype allowlist bypass in BasicPolymorphicTypeValidator (allowIfSubTypeIsArray)EPSS 0.7%CVE-2025-71351HIGHpicklescan - Remote Code Execution via timeit.timeit() Detection BypassEPSS 0.7%CVE-2026-55743CRITICALOpenHuman desktop agent shell tool sandbox bypass leads to arbitrary command executionEPSS 0.7%