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# [6.2.0](https://github.com/parse-community/parse-server/compare/6.1.0...6.2.0) (2023-05-20) ### Features * Add new Parse Server option `fileUpload.fileExtensions` to restrict file upload by file extension; this fixes a security vulnerability in which a phishing attack could be performed using an uploaded HTML file; by default the new option only allows file extensions matching the regex pattern `^[^hH][^tT][^mM][^lL]?$`, which excludes HTML files; if your app currently depends on uploading files with HTML file extensions then this may be a breaking change and you could allow HTML file upload by setting the option to `['.*']` ([#8538](https://github.com/parse-community/parse-server/issues/8538)) ([a318e7b](a318e7bbaf))