Description
Cross-site scripting (XSS) vulnerability in system/modules/comments/Comments.php in Contao CMS 2.9.2, and possibly other versions before 2.9.3, allows remote attackers to inject arbitrary web script or HTML via the HTTP X_FORWARDED_FOR header, which is stored by system/libraries/Environment.php but not properly handled by a comments action to main.php.
Remediation
References
Related Vulnerabilities
PostgreSQL Permissions, Privileges, and Access Controls Vulnerability (CVE-2013-1903)
MediaWiki Incorrect Permission Assignment for Critical Resource Vulnerability (CVE-2022-47927)
WordPress Plugin iThemes Exchange:Simple WP Ecommerce Cross-Site Scripting (1.11.18)
WordPress Plugin WP Photo Album Plus Cross-Site Scripting (4.9.2)