The page module in TYPO3 before 8.7.11, and 9.1.0, has XSS via $GLOBALS['TYPO3CONFVARS']['SYS']['sitename'], as demonstrated by an admin entering a crafted site name during the installation process.
{
"extracted_events": [
{
"introduced": "0"
},
{
"fixed": "8.7.11"
},
{
"introduced": "9.0.0"
},
{
"fixed": "9.1.0"
}
],
"source": "CPE_RANGE",
"cpe": "cpe:2.3:a:typo3:typo3:*:*:*:*:*:*:*:*"
}