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Case File

CVE-2020-21503

HIGH · CVSS 7.5 EPSS 1.05% Public Exploit

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2021-10-05 · Last synced 2026-08-04

CyberRota Analysis

This is a high severity vulnerability with a CVSS score of 7.5. Public exploit code or proof-of-concept references have been detected in its references.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

GitHub PoC Links

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2020-21503
Severity
HIGH
CVSS
7.5
EPSS
1.05%

Original NVD 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.

Related CVEs

Other vulnerabilities affecting the same vendor(s)