cPanel before 64.0.21 allows file-read and file-write operations for demo accounts via the SourceIPCheck API (SEC-250).

published 2019-08-02 7 y ago modified 2026-06-17 4 mo ago also EUVD-2017-9562

cvss: 6.3; version 3.0, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 0.7%; EPSS 0.7% chance of exploitation in 30 days, percentile 52%
public exploits: 0; none known

Patch / fix

fixed in 1

cpanel cpanel 56.0.49, 58.0.49, 60.0.43, 62.0.24, 64.0.21

Exploit prediction

0.69% chance of exploitation in the next 30 days, higher than 52% of all scored CVEs (FIRST EPSS, 2026-11-09).

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

CWE-125 Out-of-bounds Read
CWE-787 Out-of-bounds Write

References

news.cpanel.com /cpanel-tsr-2017-0003-full-disclosure/
vendor-advisory
documentation.cpanel.net /display/CL/64+Change+Log
product, release-notes

Sources

CVE List CVE-2017-18446
NVD CVE-2017-18446

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.

Summary