From c6366089df8390bc1f017006caaf4d4c69825880 Mon Sep 17 00:00:00 2001
From: 6543 <m.huber@kithara.com>
Date: Mon, 13 Nov 2023 23:30:24 +0100
Subject: [PATCH] Dont leak private users via extensions (#28023)

---
 routers/web/user/home.go | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/routers/web/user/home.go b/routers/web/user/home.go
index 8b9a4cd224..db3778d9e1 100644
--- a/routers/web/user/home.go
+++ b/routers/web/user/home.go
@@ -822,6 +822,11 @@ func UsernameSubRoute(ctx *context.Context) {
 	reloadParam := func(suffix string) (success bool) {
 		ctx.SetParams("username", strings.TrimSuffix(username, suffix))
 		context_service.UserAssignmentWeb()(ctx)
+		// check view permissions
+		if !user_model.IsUserVisibleToViewer(ctx, ctx.ContextUser, ctx.Doer) {
+			ctx.NotFound("user", fmt.Errorf(ctx.ContextUser.Name))
+			return false
+		}
 		return !ctx.Written()
 	}
 	switch {