Weaknesses of type CWE-80

646 results

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

O aplicativo web recebe entrada do usuário e a exibe na página sem sanitizar tags HTML/JavaScript, permitindo que um atacante injete scripts maliciosos que executam no navegador da vítima. O risco é roubo de sessões, credenciais, redirecionamento para sites maliciosos ou modificação do conteúdo exibido.

Example

Um campo de busca que mostra 'Você pesquisou por: <script>alert(document.cookie)</script>' sem escapar a entrada. O script executa no navegador de quem clica no link compartilhado, vazando cookies de sessão.

How to mitigate

Sempre escapar (encode) caracteres especiais HTML (< > " &) na saída ou usar bibliotecas de sanitização robustas (DOMPurify, Bleach). Implementar Content Security Policy (CSP) para bloquear scripts inline não-autorizado como camada adicional de defesa.

CVE-2018-19951—If exploited, this cross-site scripting vulnerability could allow remote attackers to inject malicious code. This issue affects: QNAP SystemEPSS 0.8%CVE-2017-20058MEDIUMElefant CMS Version Comparison Persistent cross site scritingEPSS 0.8%CVE-2017-20033MEDIUMPHPList Reflected cross site scritingEPSS 0.8%CVE-2022-20740MEDIUMCisco Firepower Management Center Software Cross-Site Scripting VulnerabilityEPSS 0.8%CVE-2018-25034LOWThomson TCW710 wlanPrimaryNetwork Persistent cross site scriptingEPSS 0.7%CVE-2023-35153CRITICALXWiki Platform vulnerable to stored cross-site scripting in ClassEditSheet page via name parametersEPSS 0.7%CVE-2026-75872MEDIUMHTML Injection in MailerUp double opt-in verification emailEPSS 0.7%CVE-2019-6585—A vulnerability has been identified in SCALANCE S602 (All versions >= V3.0 and < V4.1), SCALANCE S612 (All versions >= V3.0 and < V4.1), SCAEPSS 0.7%CVE-2017-20089LOWGwolle Guestbook Plugin cross site scritingEPSS 0.7%CVE-2017-20087LOWAlpine PhotoTile for Instagram Plugin cross site scritingEPSS 0.7%CVE-2023-42458LOWZope vulnerable to Stored Cross Site Scripting with SVG imagesEPSS 0.7%CVE-2017-20100LOWAir Transfer cross site scriptingEPSS 0.7%CVE-2021-29438MEDIUMImproper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS) in @nextcloud/dialogsEPSS 0.7%CVE-2022-1274—A flaw was found in Keycloak in the execute-actions-email endpoint. This issue allows arbitrary HTML to be injected into emails sent to KeycEPSS 0.7%CVE-2018-16555—A vulnerability has been identified in SCALANCE S602 (All versions < V4.0.1.1), SCALANCE S612 (All versions < V4.0.1.1), SCALANCE S623 (All EPSS 0.7%CVE-2022-39277MEDIUMCross-Site Scripting (XSS) in external links in GLPIEPSS 0.7%CVE-2023-22464MEDIUMViewVC XSS vulnerability in revision view changed path "copyfrom" locationsEPSS 0.7%CVE-2023-33197MEDIUMCraft CMS stored XSS in indexedVolumesEPSS 0.7%CVE-2023-5933MEDIUMImproper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS) in GitLabEPSS 0.7%CVE-2026-52816MEDIUMGogs: Unauthenticated Jupyter Notebook (ipynb) Sanitizer allows arbitrary data: URIs leading to XSSEPSS 0.7%