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.
Unrestricted File Upload vulnerability in the fileDenyPattern in sysext/core/Classes/Core/SystemEnvironmentBuilder.php in TYPO3 7.6.0 to 7.6.21 and 8.0.0 to 8.7.4 allows remote authenticated users to upload files with a .pht extension and consequently execute arbitrary PHP code.
Extbase in TYPO3 4.3.0 before 6.2.24, 7.x before 7.6.8, and 8.1.1 allows remote attackers to obtain sensitive information or possibly execute arbitrary code via a crafted Extbase action.
SQL injection vulnerability in the Post data records to facebook (bc_post2facebook) extension before 0.2.2 for TYPO3 allows remote attackers to execute arbitrary SQL commands via unspecified vectors.
The System Utilities (sysutils) extension 1.0.3 and earlier for TYPO3 allows remote attackers to obtain sensitive information via unspecified vectors related to improper "protection" of the "backup output directory."
Unspecified vulnerability in the Webservices for TYPO3 (typo3_webservice) extension before 0.3.8 for TYPO3 allows remote authenticated users to execute arbitrary code via unknown vectors.
Cross-site scripting (XSS) vulnerability in the Euro Calculator (skt_eurocalc) extension 0.0.1 allows remote attackers to inject arbitrary web script or HTML via unspecified vectors.
Cross-site scripting (XSS) vulnerability in the Yet another Google search (ya_googlesearch) extension before 0.3.10 for TYPO3 allows remote attackers to inject arbitrary web script or HTML via unspecified vectors.
Cross-site scripting (XSS) vulnerability in the Terminal PHP Shell (terminal) extension 0.3.2 and earlier for TYPO3 allows remote authenticated users to inject arbitrary web script or HTML via unspecified vectors.
Cross-site request forgery (CSRF) vulnerability in the Terminal PHP Shell (terminal) extension 0.3.2 and earlier for TYPO3 allows remote attackers to hijack the authentication of unspecified victims via unknown vectors.