Jmix is a set of libraries and tools to speed up Spring Boot data-centric application development. In versions 1.0.0 to 1.6.1 and 2.0.0 to 2.3.4, the input parameter, which consists of a file path and name, can be manipulated to return the Content-Type header with text/html if the name part ends with .html. This could allow malicious JavaScript code to be executed in the browser. For a successful attack, a malicious file needs to be uploaded beforehand. This issue has been patched in versions 1.6.2 and 2.4.0. A workaround is provided on the Jmix documentation website.
https://github.com/jmix-framework/jmix/security/advisories/GHSA-x27v-f838-jh93
https://github.com/jmix-framework/jmix/issues/3836
https://github.com/jmix-framework/jmix/issues/3804
https://github.com/jmix-framework/jmix/commit/f4e6fb05bd245cf36f3e9319aaa0fcd540d024aa
https://github.com/jmix-framework/jmix/commit/cc97e6ff974b9e7af8160fab39cc5866169daa37
https://github.com/jmix-framework/jmix/commit/c589ef4e2b25620770b8036f4ad05f1a6250cb6a
https://github.com/jmix-framework/jmix/commit/6a66aa3adb967159a30d703e80403406f4c8f7a2
https://docs.jmix.io/jmix/files-vulnerabilities.html#disable-files-endpoint-in-jmix-application