Falhas do tipo CWE-284

7.089 resultados

Controle de acesso inadequado a recursos

A aplicação falha em validar ou aplica incorretamente as restrições de acesso, permitindo que usuários não autorizados acessem dados ou funcionalidades que deveriam estar protegidas. É uma das fragilidades mais comuns em segurança: o código não verifica corretamente quem está pedindo acesso e simplesmente concede.

Exemplo

Um e-commerce que permite acessar o perfil de qualquer cliente substituindo o ID na URL (ex: /usuario/123 → /usuario/124), sem validar se o usuário autenticado é o dono daquele perfil. Um atacante consegue ver dados pessoais, histórico de compras e endereços de outras pessoas.

Como mitigar

Implemente verificações explícitas em cada acesso a recurso: autentique o usuário, identifique qual recurso ele quer acessar, e valide se as permissões dele cobrem aquele recurso específico. Use listas de controle de acesso (ACLs) ou papéis (RBAC/ABAC) consistentemente em toda a API ou aplicação, nunca deixando a segurança implícita.

CVE-2026-51723CRITICALIncorrect access control in the UploadCustomModule function of TOTOLINK T6 4.1.5cu.748_B20211015 allows unauthenticated attackers to installEPSS 0.5%CVE-2026-51636CRITICALIncorrect access control in the getWiFiAclRules function of TOTOLINK T6 4.1.5cu.748_B20211015 allows unauthenticated attackers to obtain Wi-EPSS 0.5%CVE-2026-51680CRITICALIncorrect access control in the setLedCfg function of TOTOLINK T6 4.1.5cu.748_B20211015 allows unauthenticated attackers to modify LED behavEPSS 0.5%CVE-2026-51692CRITICALIncorrect access control in the setWiFiGuestCfg function of TOTOLINK T6 4.1.5cu.748_B20211015 allows unauthenticated attackers to establish EPSS 0.5%CVE-2026-51731CRITICALIncorrect access control in the delVlanCfg function of TOTOLINK T6 4.1.5cu.748_B20211015 allows unauthenticated attackers to remove VLAN entEPSS 0.5%CVE-2026-51687CRITICALIncorrect access control in the setWiFiEasyGuestCf function of TOTOLINK T6 4.1.5cu.748_B20211015 allows unauthenticated attackers to create EPSS 0.5%CVE-2026-51677CRITICALIncorrect access control in the setUPnPCfg function of TOTOLINK T6 4.1.5cu.748_B20211015 allows unauthenticated attackers to change UPnP serEPSS 0.5%CVE-2026-51743CRITICALIncorrect access control in the guest_wifi_sync function of TOTOLINK T6 4.1.5cu.748_B20211015 allows unauthenticated attackers to disable guEPSS 0.5%CVE-2026-51646CRITICALIncorrect access control in the getParentalRules function of TOTOLINK T6 4.1.5cu.748_B20211015 allows unauthenticated attackers to obtain paEPSS 0.5%CVE-2026-51710CRITICALIncorrect access control in the setParentalRules function of TOTOLINK T6 4.1.5cu.748_B20211015 allows unauthenticated attackers to alter parEPSS 0.5%CVE-2024-37677HIGHAn issue in Shenzhen Weitillage Industrial Co., Ltd the access management specialist V6.62.51215 allows a remote attacker to obtain sensitivEPSS 0.5%CVE-2026-51736CRITICALIncorrect access control in the clearSyslog function of TOTOLINK T6 4.1.5cu.748_B20211015 allows unauthenticated attackers to erase system lEPSS 0.5%CVE-2026-51690CRITICALIncorrect access control in the setWanCfg function of TOTOLINK T6 4.1.5cu.748_B20211015 allows unauthenticated attackers to alter upstream pEPSS 0.5%CVE-2026-51697CRITICALIncorrect access control in the setIptvCfg function of TOTOLINK T6 4.1.5cu.748_B20211015 allows unauthenticated attackers to alter IPTV servEPSS 0.5%CVE-2026-51725CRITICALIncorrect access control in the NTPSyncWithHost function of TOTOLINK T6 4.1.5cu.748_B20211015 allows unauthenticated attackers to change theEPSS 0.5%CVE-2026-51622CRITICALIncorrect access control in the getWanCfg function of TOTOLINK T6 4.1.5cu.748_B20211015 allows unauthenticated attackers to obtain WAN confiEPSS 0.5%CVE-2026-24036MEDIUMHorilla Exposes Unpublished Job Disclosures through Unauthenticated APIEPSS 0.5%CVE-2021-46851CRITICALThe DRM module has a vulnerability in verifying the secure memory attributes. Successful exploitation of this vulnerability may cause abnormEPSS 0.5%CVE-2024-13201MEDIUMwander-chu SpringBoot-Blog Admin Attachment AttachtController.java upload unrestricted uploadEPSS 0.5%CVE-2026-83602MEDIUMNetdata: Unauthenticated remote PUT to /api/v3/settings bypasses IP allowlist controls via HTTP_ACL_NOCHECKEPSS 0.5%