Hello Developers,
I am facing a similar issue. When I first ran the script on my WSL, it worked fine for the first scan. It displayed the test results and even showed that the URL was vulnerable. However, when I try scanning the same URL again, it shows "0 URLs scanned" and I encounter the following error:
FO:sqlmc.lib.scanner:[2025-04-21 06:02:36.025800] Scanned: http://testphp.vulnweb.com/cart.php, Vulnerable: False, Database: None
INFO:sqlmc.lib.scanner:[2025-04-21 06:02:36.026069] Scanned: http://testphp.vulnweb.com/guestbook.php, Vulnerable: False, Database: None
INFO:sqlmc.lib.scanner:[2025-04-21 06:02:36.029254] Scanned: http://testphp.vulnweb.com/categories.php, Vulnerable: False, Database: None
INFO:sqlmc.lib.scanner:[2025-04-21 06:02:36.029521] Scanned: http://testphp.vulnweb.com/AJAX/index.php, Vulnerable: False, Database: None
Traceback (most recent call last):
File "/home/unknone/.local/bin/sqlmc", line 8, in
sys.exit(main())
^^^^^^
File "/home/unknone/.local/lib/python3.12/site-packages/sqlmc/sqlmc.py", line 41, in main
sqlscanner = scanner.Scanner(url, depth)
^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/home/unknone/.local/lib/python3.12/site-packages/sqlmc/lib/scanner.py", line 24, in init
asyncio.run(self.scan(url, depth))
File "/usr/lib/python3.12/asyncio/runners.py", line 194, in run
return runner.run(main)
^^^^^^^^^^^^^^^^
File "/usr/lib/python3.12/asyncio/runners.py", line 118, in run
return self._loop.run_until_complete(task)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/lib/python3.12/asyncio/base_events.py", line 687, in run_until_complete
return future.result()
^^^^^^^^^^^^^^^
File "/home/unknone/.local/lib/python3.12/site-packages/sqlmc/lib/scanner.py", line 60, in scan
await asyncio.gather(*tasks)
File "/home/unknone/.local/lib/python3.12/site-packages/sqlmc/lib/scanner.py", line 74, in scan_single_link
await self.scan(href, depth - 1)
File "/home/unknone/.local/lib/python3.12/site-packages/sqlmc/lib/scanner.py", line 60, in scan
await asyncio.gather(*tasks)
File "/home/unknone/.local/lib/python3.12/site-packages/sqlmc/lib/scanner.py", line 74, in scan_single_link
await self.scan(href, depth - 1)
File "/home/unknone/.local/lib/python3.12/site-packages/sqlmc/lib/scanner.py", line 60, in scan
await asyncio.gather(*tasks)
File "/home/unknone/.local/lib/python3.12/site-packages/sqlmc/lib/scanner.py", line 74, in scan_single_link
await self.scan(href, depth - 1)
File "/home/unknone/.local/lib/python3.12/site-packages/sqlmc/lib/scanner.py", line 45, in scan
html = await self.fetch_html(url)
^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/home/unknone/.local/lib/python3.12/site-packages/sqlmc/lib/scanner.py", line 39, in fetch_html
return await response.text()
^^^^^^^^^^^^^^^^^^^^^
File "/home/unknone/.local/lib/python3.12/site-packages/aiohttp/client_reqrep.py", line 1265, in text
return self._body.decode(encoding, errors=errors) # type: ignore[union-attr]
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
UnicodeDecodeError: 'utf-8' codec can't decode byte 0xff in position 0: invalid start byte
It seems like the issue arises when trying to decode the response text from the URL. Any advice on how to resolve this issue?
Thank you!

Hello Developers,
I am facing a similar issue. When I first ran the script on my WSL, it worked fine for the first scan. It displayed the test results and even showed that the URL was vulnerable. However, when I try scanning the same URL again, it shows "0 URLs scanned" and I encounter the following error:
FO:sqlmc.lib.scanner:[2025-04-21 06:02:36.025800] Scanned: http://testphp.vulnweb.com/cart.php, Vulnerable: False, Database: None
INFO:sqlmc.lib.scanner:[2025-04-21 06:02:36.026069] Scanned: http://testphp.vulnweb.com/guestbook.php, Vulnerable: False, Database: None
INFO:sqlmc.lib.scanner:[2025-04-21 06:02:36.029254] Scanned: http://testphp.vulnweb.com/categories.php, Vulnerable: False, Database: None
INFO:sqlmc.lib.scanner:[2025-04-21 06:02:36.029521] Scanned: http://testphp.vulnweb.com/AJAX/index.php, Vulnerable: False, Database: None
Traceback (most recent call last):
File "/home/unknone/.local/bin/sqlmc", line 8, in
sys.exit(main())
^^^^^^
File "/home/unknone/.local/lib/python3.12/site-packages/sqlmc/sqlmc.py", line 41, in main
sqlscanner = scanner.Scanner(url, depth)
^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/home/unknone/.local/lib/python3.12/site-packages/sqlmc/lib/scanner.py", line 24, in init
asyncio.run(self.scan(url, depth))
File "/usr/lib/python3.12/asyncio/runners.py", line 194, in run
return runner.run(main)
^^^^^^^^^^^^^^^^
File "/usr/lib/python3.12/asyncio/runners.py", line 118, in run
return self._loop.run_until_complete(task)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/lib/python3.12/asyncio/base_events.py", line 687, in run_until_complete
return future.result()
^^^^^^^^^^^^^^^
File "/home/unknone/.local/lib/python3.12/site-packages/sqlmc/lib/scanner.py", line 60, in scan
await asyncio.gather(*tasks)
File "/home/unknone/.local/lib/python3.12/site-packages/sqlmc/lib/scanner.py", line 74, in scan_single_link
await self.scan(href, depth - 1)
File "/home/unknone/.local/lib/python3.12/site-packages/sqlmc/lib/scanner.py", line 60, in scan
await asyncio.gather(*tasks)
File "/home/unknone/.local/lib/python3.12/site-packages/sqlmc/lib/scanner.py", line 74, in scan_single_link
await self.scan(href, depth - 1)
File "/home/unknone/.local/lib/python3.12/site-packages/sqlmc/lib/scanner.py", line 60, in scan
await asyncio.gather(*tasks)
File "/home/unknone/.local/lib/python3.12/site-packages/sqlmc/lib/scanner.py", line 74, in scan_single_link
await self.scan(href, depth - 1)
File "/home/unknone/.local/lib/python3.12/site-packages/sqlmc/lib/scanner.py", line 45, in scan
html = await self.fetch_html(url)
^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/home/unknone/.local/lib/python3.12/site-packages/sqlmc/lib/scanner.py", line 39, in fetch_html
return await response.text()
^^^^^^^^^^^^^^^^^^^^^
File "/home/unknone/.local/lib/python3.12/site-packages/aiohttp/client_reqrep.py", line 1265, in text
return self._body.decode(encoding, errors=errors) # type: ignore[union-attr]
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
UnicodeDecodeError: 'utf-8' codec can't decode byte 0xff in position 0: invalid start byte
It seems like the issue arises when trying to decode the response text from the URL. Any advice on how to resolve this issue?
Thank you!
