CVE-2020-21503: Waimai Super CMS Project Waimai Super CMS

High severity, CVSS 7.5. EPSS: 1.1% chance of exploitation in the next 30 days.

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.

Affected products

Published 2021-10-05. Last modified 2026-06-17.