Description Contao 3.x before 3.5.32 allows XSS via the unsubscribe module in the frontend newsletter extension. Remediation References CVE-2018-5478 Related Vulnerabilities Drupal Resource Management Errors Vulnerability (CVE-2014-5265) WordPress Plugin Availability Calendar Cross-Site Scripting (1.2.1) WordPress Plugin Calendar Event Multi View Multiple Vulnerabilities (1.1.4) e107 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') Vulnerability (CVE-2010-4757) WordPress Plugin 3D Tag Cloud Cross-Site Request Forgery (3.8) Severity Medium Classification CVE-2018-5478 CWE-707 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N Tags Missing Update Known Vulnerabilities