CVE-2020-21503

7.5 highEPSS 1.1%

High (7.5) in waimai super cms project waimai super cms. 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.

Severity

CVSS 3.1

7.5 high

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

EPSS: 1.1% chance of exploitation in the next 30 days; higher than 64% of CVEs (scores of 2026-10-31)
CWE: CWE-668
Published: 2021-10-05
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

waimai_super_cms_project:waimai_super_cms

References

https://github.com/caokang/waimai/issues/15
https://github.com/caokang/waimai/issues/15

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