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Clipboards are incorrectly marked as NBT safe

rybot666 opened this issue ยท 0 comments

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Describe the Bug

Clipboards are incorrectly marked as NBT-safe, despite copying an item stack blindly from their NBT data. This means that printing a malicious schematic containing a clipboard block can spawn any item once the clipboard is broken.

Reproduction Steps

  1. Take a schematic of a placed clipboard block
  2. Open it in an NBT editor
  3. Modify the Item tag of the clipboard block entity to contain whatever you want
  4. Print the schematic with a schematicannon
  5. Break the placed clipboard

Expected Result

The NBT should be verified to make sure the item is actually a clipboard.

Screenshots and Videos

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Crash Report or Log

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Operating System

Windows 10

Mod Version

0.5.1f

Minecraft Version

1.20.1

Forge Version

36.2.0

Other Mods

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Additional Context

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