CVE-2017-18388 json
cPanel before 68.0.15 can perform unsafe file operations because Jailshell does not set the umask (SEC-315).
published 2019-08-02 7 y ago modified 2026-06-17 4 mo ago also EUVD-2017-9504
- cvss
- 7.8
- 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 35%
- public exploits
- 0
- none known
Summary
cPanel before 68.0.15 can perform unsafe file operations because Jailshell does not set the umask (SEC-315).
Patch / fix
- cpanel cpanel 62.0.35, 64.0.42, 66.0.34, 68.0.15
Exploit prediction
0.41% chance of exploitation in the next 30 days, higher than 35% of all scored CVEs (FIRST EPSS, 2026-11-09).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.0 | 7.8 | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 7.2 | AV:L/AC:L/Au:N/C:C/I:C/A:C |
Classification
- Weakness
-
- CWE-20 Improper Input Validation
References
-
news.cpanel.com
/cpanel-tsr-2017-0006-full-disclosure/
vendor-advisory
-
documentation.cpanel.net
/display/CL/68+Change+Log
product, release-notes
Sources
- CVE List CVE-2017-18388
- NVD CVE-2017-18388
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.