system
Describe <CVE-2020-21503>.
user
What is <CVE-2020-21503>?
assistant
waimai Super Cms 20150505 has a logic flaw allowing attackers to modify a price, before form submission, by observing data in a packet capture. By setting the index.php?m=gift&a=addsave credit parameter to -1, the product is sold for free..