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Fencer Vulns
high 8.8

CVE-2020-18418 json

A Cross site request forgery (CSRF) vulnerability was discovered in FeiFeiCMS v4.1.190209, which allows attackers to create administrator a…

published 2023-06-27 3 y ago modified 2026-06-17 4 mo ago also EUVD-2020-10342

cvss
8.8
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.4%
EPSS 0.4% chance of exploitation in 30 days, percentile 32%
public exploits
0
none known

Summary

A Cross site request forgery (CSRF) vulnerability was discovered in FeiFeiCMS v4.1.190209, which allows attackers to create administrator accounts via /index.php?s=Admin-Admin-Insert.

CISA SSVC

Exploitation
Proof of concept is public
Automatable
no
Technical impact
total
Assessed
23 mo ago

Exploit prediction

0.38% chance of exploitation in the next 30 days, higher than 32% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • github.com https://github.com/GodEpic/Vulnerability-detection/blob/master/feifeicms/FeiFeiCMS_4.1_csrf.doc referenced PoC, tagged "exploit" by a source, unverified
  • github.com https://github.com/GodEpic/Vulnerability-detection/blob/master/feifeicms/poc referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.1 8.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

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.