Falhas do tipo CWE-184

197 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-2017-2602LOWjenkins before versions 2.44, 2.32.2 is vulnerable to an improper blacklisting of the Pipeline metadata files in the agent-to-master securitEPSS 1.6%CVE-2017-7540—rubygem-safemode, as used in Foreman, versions 1.3.2 and earlier are vulnerable to bypassing safe mode limitations via special Ruby syntax. EPSS 1.5%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-2026-25951HIGHFUXA has a Path Traversal Sanitization BypassEPSS 1.3%CVE-2026-56315CRITICALpicklescan - Remote Code Execution via Unblocked Standard Library ModulesEPSS 1.1%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-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 1.1%CVE-2021-1133MEDIUMCisco Data Center Network Manager REST API VulnerabilitiesEPSS 1.1%CVE-2026-87911CRITICALRead-only enforcement bypass enabling operating system command execution in the SQL validation component of Amazon awslabs postgres-mcp-serverEPSS 1.0%CVE-2026-54513HIGHjackson-databind: Array subtype allowlist bypass in BasicPolymorphicTypeValidator (allowIfSubTypeIsArray)EPSS 0.9%CVE-2026-47392CRITICALPraisonAI vulnerable to sandbox escape via `print.__self__` builtins module leak in `execute_code` (subprocess mode)EPSS 0.9%CVE-2026-84218HIGHOrg.jolokia/jolokia-core: incomplete jndi denylist in jolokia jsr-160 proxy (bypass of cve-2018-1000130 fix)EPSS 0.9%CVE-2026-70470CRITICALFlowise: Pyodide validator Unicode homoglyph bypass leads to RCEEPSS 0.9%CVE-2026-54512HIGHjackson-databind: PolymorphicTypeValidator bypass via generic type parameters allows arbitrary class instantiationEPSS 0.9%CVE-2024-51745LOWWasmtime doesn't fully sandbox all the Windows device filenamesEPSS 0.8%CVE-2026-33396CRITICALOneUptime has sandbox escape in Synthetic Monitor Playwright runtime allows project members to execute arbitrary commands on ProbeEPSS 0.8%CVE-2025-29822HIGHMicrosoft OneNote Security Feature Bypass VulnerabilityEPSS 0.8%CVE-2020-3384HIGHCisco Data Center Network Manager Command Injection VulnerabilityEPSS 0.8%