Validate requested user id (#8812)

1 files changed, 2 insertions, 0 deletions

diff --git a/Jellyfin.Api/Controllers/DevicesController.cs b/Jellyfin.Api/Controllers/DevicesController.cs
index 497862236..aa0dff212 100644
--- a/Jellyfin.Api/Controllers/DevicesController.cs
+++ b/Jellyfin.Api/Controllers/DevicesController.cs
@@ -2,6 +2,7 @@ using System;
 using System.ComponentModel.DataAnnotations;
 using System.Threading.Tasks;
 using Jellyfin.Api.Constants;
+using Jellyfin.Api.Helpers;
 using Jellyfin.Data.Dtos;
 using Jellyfin.Data.Entities.Security;
 using Jellyfin.Data.Queries;
@@ -48,6 +49,7 @@ public class DevicesController : BaseJellyfinApiController
     [ProducesResponseType(StatusCodes.Status200OK)]
     public async Task<ActionResult<QueryResult<DeviceInfo>>> GetDevices([FromQuery] bool? supportsSync, [FromQuery] Guid? userId)
     {
+        userId = RequestHelpers.GetUserId(User, userId);
         return await _deviceManager.GetDevicesForUser(userId, supportsSync).ConfigureAwait(false);
     }