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Fencer Intel
critical 9.1

CVE-2020-17564 json

Path Traversal in FeiFeiCMS v4.0 allows remote attackers to delete arbitrary files by sending a crafted HTTP request to the " Admin/DataAct…

published 5y ago modified 4mo ago also EUVD-2020-9494

cvss
9.1
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
2.6%
EPSS 2.6% chance of exploitation in 30 days, percentile 85%
public exploits
0
none known

Summary

Path Traversal in FeiFeiCMS v4.0 allows remote attackers to delete arbitrary files by sending a crafted HTTP request to the " Admin/DataAction.class.php" component.

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Exploit prediction

2.60% chance of exploitation in the next 30 days, higher than 85% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • blog.51cto.com http://blog.51cto.com/12653365/2328557 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.1 9.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
NVD 2.0 6.4 AV:N/AC:L/Au:N/C:N/I:P/A:P

Classification

Weakness
  • CWE-22 Improper Limitation of a Pathname to a Restricted Directory

References

Sources

Fencer Intel 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.