Is this a flaw? Not necessarily. Many security professionals argue that a hex editor should not run code embedded in files. A plugin system introduces attack surface. When you open a malicious file, you don't want your hex editor's plugin loader to be the vector.
(if not already). Step 2: Save this script as hxd_reverse_bytes.py : hxd plugins
import sys import clipboard # pip install clipboard Note: HXD copies raw hex bytes, not ASCII hex. This example assumes you copied bytes, not text. data = clipboard.paste() Simulate: Reverse byte order if isinstance(data, bytes): reversed_data = data[::-1] clipboard.copy(reversed_data) print("Reversed! Paste back into HXD.") else: print("Copy raw binary from HXD first.") Is this a flaw