Fallos del tipo CWE-287

2853 resultados

Autenticação inadequada ou ausente

A aplicação não valida ou valida de forma insuficiente a identidade de quem tenta acessá-la. Quando um usuário diz ser quem é, o sistema acredita sem verificar corretamente, permitindo que atacantes se façam passar por outros usuários ou contas legítimas.

Ejemplo

Um sistema que aceita login apenas com nome de usuário, sem senha. Ou uma API que confia no header 'User-ID' enviado pelo cliente sem validar se aquele usuário realmente existe ou tem sessão ativa. Um atacante simplesmente altera o header e acessa dados de outra conta.

Cómo mitigar

Implemente autenticação robusta: exija múltiplos fatores (senha forte + MFA), valide credenciais contra base de dados segura, use sessões com token assinado e com expiração, nunca confie em dados enviados pelo cliente como prova de identidade. Revise regularmente logs de acesso para detectar abusos.

CVE-2026-18074HIGHIBM Financial Transaction Manager (FTM) is Impacted by Multiple VulnerabilitiesEPSS 0.4%CVE-2026-12493HIGHClover Payment Gateway by Zaytech for WooCommerce < 1.3.6 - Unauthenticated Payment Bypass via check_orderEPSS 0.4%CVE-2023-25556HIGH A CWE-287: Improper Authentication vulnerability exists that could allow a device to be compromised when a key of less than seven digits isEPSS 0.4%CVE-2026-14830HIGHFlxWoo < 3.1.1 - Unauthenticated Payment BypassEPSS 0.4%CVE-2026-103646CRITICALUltimate Multisite < 2.17.0 - Unauthenticated Authentication Bypass via 'email_address' ParameterEPSS 0.4%CVE-2026-9373MEDIUMJeecgBoot OpenAPI Endpoint call improper authenticationEPSS 0.4%CVE-2025-69822HIGHAn issue in Atomberg Atomberg Erica Smart Fan Firmware Version: V1.0.36 allows an attacker to obtain sensitive information and escalate privEPSS 0.4%CVE-2023-39531MEDIUMSentry vulnerable to incorrect credential validation on OAuth token requestsEPSS 0.4%CVE-2026-16892MEDIUMIBM i is Affected By An Improper Authentication Vulnerability in Network Authentication Service []EPSS 0.4%CVE-2026-61067HIGHVulnerability in the Oracle Access Manager product of Oracle Fusion Middleware (component: Authentication Engine). Supported versions that EPSS 0.4%CVE-2024-42164MEDIUMDisabling MFA without AuthenticationEPSS 0.4%CVE-2026-84458CRITICALZammad: Account takeover via unverified email matching during SSO auto-linkEPSS 0.4%CVE-2025-69197MEDIUMPterodactyl TOTPs can be reused during validity windowEPSS 0.4%CVE-2025-12998HIGHBroken Authentication in extension “Modules” (modules)EPSS 0.4%CVE-2025-41064CRITICALIncorrect authentication in GTT´s group OpenSIACEPSS 0.4%CVE-2026-79885HIGHUnauthenticated File Write Vulnerability leads to Denial-of-Service in AOS-8EPSS 0.4%CVE-2026-97175HIGHKeycloak-services: keycloak-services: unverified idp email auto-linking enables account takeoverEPSS 0.4%CVE-2025-46641MEDIUMDell PowerProtect Data Domain with Data Domain Operating System (DD OS) of Feature Release versions 8.4 through 8.5 contain an improper authEPSS 0.4%CVE-2026-106457MEDIUMBackstage: Insufficient audience validation in the Cloudflare Access auth providerEPSS 0.4%CVE-2026-91491CRITICALVulnerability in the Oracle Identity Manager Connector product of Oracle Fusion Middleware (component: LDAP Gateway). Supported versions thEPSS 0.4%