Falhas do tipo CWE-80

632 resultados

Falta de neutralização de tags HTML relacionadas a scripts (XSS básico)

Ocorre quando a aplicação web recebe entrada do usuário e a exibe no HTML sem sanitizar tags de script e eventos (como <script>, onclick, onerror). Um atacante injeta código JavaScript malicioso que executa no navegador da vítima, roubando cookies, sessões ou dados sensíveis.

Exemplo

Um formulário de comentários aceita '<img src=x onerror="alert(document.cookie)">'. A aplicação exibe o comentário sem filtro na página, e o navegador executa o código malicioso quando carrega a imagem inválida, capturando a sessão do usuário.

Como mitigar

Escape ou remova todas as tags HTML perigosas antes de renderizar (use bibliotecas como DOMPurify ou sanitizadores nativos da stack). Aplique Content Security Policy (CSP) nos headers HTTP para bloquear inline scripts mesmo que a injeção passe.

CVE-2017-20113LOWTrueConf Server Stored cross site scriptingEPSS 0.6%CVE-2017-20114LOWTrueConf Server Reflected cross site scriptingEPSS 0.6%CVE-2017-20117LOWTrueConf Server group DOM cross site scriptingEPSS 0.6%CVE-2017-20118LOWTrueConf Server DOM cross site scriptingEPSS 0.6%CVE-2017-20115LOWTrueConf Server Reflected cross site scriptingEPSS 0.6%CVE-2017-20116LOWTrueConf Server Reflected cross site scriptingEPSS 0.6%CVE-2021-27915HIGHXSS Cross-site Scripting Stored (XSS) - Description fieldEPSS 0.6%CVE-2023-33194LOWCraftCMS stored XSS in Quick Post widget error messageEPSS 0.6%CVE-2008-10001MEDIUMPro2col Stingray FTS cross site scritingEPSS 0.6%CVE-2023-22461HIGHsanitize-svg Filter Bypass Allows Cross-Site Scripting (XSS)EPSS 0.6%CVE-2017-20036LOWPHPList Bounce Rule Persistent cross site scritingEPSS 0.6%CVE-2017-20034LOWPHPList List Name Persistent cross site scritingEPSS 0.6%CVE-2017-20035LOWPHPList Subscribe Persistent cross site scritingEPSS 0.6%CVE-2025-25299LOWCross-site scripting (XSS) in the real-time collaboration packageEPSS 0.6%CVE-2020-2498—Cross-site scripting vulnerability in QTS and QuTS heroEPSS 0.6%CVE-2025-39663HIGHCross Site Scripting through compromised remote siteEPSS 0.6%CVE-2022-35509MEDIUMAn issue was discovered in EyouCMS 1.5.8. There is a Storage XSS vulnerability that can allows an attacker to execute arbitrary Web scripts EPSS 0.6%CVE-2018-25035LOWThomson TCW710 RGFirewallEL Persistent cross site scritingEPSS 0.6%CVE-2018-25036LOWThomson TCW710 RgTime Persistent cross site scritingEPSS 0.6%CVE-2017-20057MEDIUMElefant CMS Persistent cross site scritingEPSS 0.6%