TYPO3 Security optimization for TYPO3 websites – the thing that matters most
GitHub - ohader/scanner: Extraction of TYPO3 CMS Extension-Scanner package as separate composer library
Oliver Hader on Twitter: "#SAST Security Analysis in #TYPO3, based on @psalmphp, now basically supports detecting potential vulnerabilities in custom hooks - e.g. our recent https://t.co/GWGNHH05pz could have been detected with that.
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Extension scanner — TYPO3 Explained main documentation