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Fencer Vulns
medium 6.3

CVE-2017-18403 json

cPanel before 68.0.15 allows code execution in the context of the nobody account via Mailman archives (SEC-337).

published 2019-08-02 7 y ago modified 2026-06-17 4 mo ago also EUVD-2017-9519

cvss
6.3
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.8%
EPSS 0.8% chance of exploitation in 30 days, percentile 57%
public exploits
0
none known

Summary

cPanel before 68.0.15 allows code execution in the context of the nobody account via Mailman archives (SEC-337).

Patch / fix

  • cpanel cpanel 62.0.35, 64.0.42, 66.0.34, 68.0.15

Exploit prediction

0.83% chance of exploitation in the next 30 days, higher than 57% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.0 6.3 CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
NVD 2.0 6.5 AV:N/AC:L/Au:S/C:P/I:P/A:P

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.