Potential fix for code scanning alert no. 37: Reflected server-side cross-site scripting#17
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AntoineBuirey merged 1 commit intomainfrom Sep 11, 2025
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…ross-site scripting Co-authored-by: Copilot Autofix powered by AI <62310815+github-advanced-security[bot]@users.noreply.github.com>
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Potential fix for https://github.com/T0ine34/forge-server-manager/security/code-scanning/37
To fix this XSS vulnerability, you should lock down which mime types can be served, rather than simply trusting the output of
guess_type()on a user-controlled filename. The most effective and minimally disruptive approach is to whitelist permissible mimetypes (e.g.,text/css,application/javascript,image/*, etc.) and default all else toapplication/octet-streamor another safe mime type. Additionally, you could sanitize or escape any case in which file or path info is reflected in the response body, but in this function that's not the case. Only edit the code instatic_proxywithinserver/src/user_interface/web_server/http_server.pyas shown. Insert a whitelist check just after the mimetype is chosen, and fallback to a safe type if an unapproved value is used.Suggested fixes powered by Copilot Autofix. Review carefully before merging.