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Medium 4.8
Stored XSS in Miniflux when opening a broken image due to unescaped ServerError in proxy handler
Miniflux is a feed reader. Since v2.0.25, Miniflux will automatically proxy images served over HTTP to prevent mixed content errors. When an outbound request made by the Go HTTP client fails, the `html.ServerError` is returned unescaped without the expected C…