Core/PacketIO: Restrict CMSG_STANDSTATECHANGE to only allow the same stand states that client can send by itself

(cherry picked from commit 267bdde3232566e210659df47dc7580e676e9ee5)

1 files changed, 11 insertions, 0 deletions

diff --git a/src/server/game/Handlers/MiscHandler.cpp b/src/server/game/Handlers/MiscHandler.cpp
index 2a5a8432a4f..fe85091db82 100644
--- a/src/server/game/Handlers/MiscHandler.cpp
+++ b/src/server/game/Handlers/MiscHandler.cpp
@@ -392,6 +392,17 @@ void WorldSession::HandleSetSelectionOpcode(WorldPackets::Misc::SetSelection& pa
 
 void WorldSession::HandleStandStateChangeOpcode(WorldPackets::Misc::StandStateChange& packet)
 {
+    switch (packet.StandState)
+    {
+        case UNIT_STAND_STATE_STAND:
+        case UNIT_STAND_STATE_SIT:
+        case UNIT_STAND_STATE_SLEEP:
+        case UNIT_STAND_STATE_KNEEL:
+            break;
+        default:
+            return;
+    }
+
     _player->SetStandState(packet.StandState);
 }