Description
The page module in TYPO3 before 8.7.11, and 9.1.0, has XSS via $GLOBALS['TYPO3_CONF_VARS']['SYS']['sitename'], as demonstrated by an admin entering a crafted site name during the installation process.
Remediation
References
Related Vulnerabilities
MySQL CVE-2013-3804 Vulnerability (CVE-2013-3804)
WordPress Plugin Blue Wrench Video Widget Cross-Site Scripting (2.1.0)
WordPress Plugin Lightbox Jquery Possible Remote Code Execution (0.24)
Oracle Database Server CVE-2009-3413 Vulnerability (CVE-2009-3413)
Vanilla Forums Improper Input Validation Vulnerability (CVE-2011-0908)