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Fencer Vulns
medium 6.5

CVE-2020-21139 json

EC Cloud E-Commerce System v1.3 was discovered to contain a Cross-Site Request Forgery (CSRF) which allows attackers to arbitrarily add adm…

published 2021-11-04 5 y ago modified 2026-06-17 4 mo ago also EUVD-2020-13916

cvss
6.5
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.5%
EPSS 0.5% chance of exploitation in 30 days, percentile 41%
public exploits
0
none known

Summary

EC Cloud E-Commerce System v1.3 was discovered to contain a Cross-Site Request Forgery (CSRF) which allows attackers to arbitrarily add admin accounts via /admin.html?do=user&act=add.

Exploit prediction

0.47% chance of exploitation in the next 30 days, higher than 41% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • github.com https://github.com/Ryan0lb/EC-cloud-e-commerce-system-CVE-application/blob/master/README.md referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.1 6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
NVD 2.0 4.3 AV:N/AC:M/Au:N/C:N/I:P/A:N

Classification

Weakness
  • CWE-352 Cross-Site Request Forgery

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.