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Fencer Vulns
low 3.3

CVE-2017-18427 json

In cPanel before 66.0.2, weak log-file permissions can occur after account modification (SEC-289).

published 2019-08-02 7 y ago modified 2026-06-17 4 mo ago also EUVD-2017-9543

cvss
3.3
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.4%
EPSS 0.4% chance of exploitation in 30 days, percentile 30%
public exploits
0
none known

Summary

In cPanel before 66.0.2, weak log-file permissions can occur after account modification (SEC-289).

Patch / fix

  • cpanel cpanel 56.0.51, 58.0.52, 60.0.45, 62.0.27, 64.0.33, 66.0.2

Exploit prediction

0.36% chance of exploitation in the next 30 days, higher than 30% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.0 3.3 CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
NVD 2.0 2.1 AV:L/AC:L/Au:N/C:P/I:N/A:N

Classification

Weakness

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.