VULNERABILITY INTELLIGENCE
CVE-2020-21503
CVSS score7.5 HIGH
EPSS probability1.05%
CISA KEVNot currently listed
Published2021-10-05
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Description
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.
Weakness classification
- nvd@nist.gov: CWE-668
Primary references
- cve@mitre.org — Exploit, Third Party Advisory
- af854a3a-2127-422b-91ae-364da2661108 — Exploit, Third Party Advisory