CVE-2018-20940 json
cPanel before 68.0.27 allows attackers to read root's crontab file during a short time interval upon the enabling of backups (SEC-342).
published 2019-08-01 7 y ago modified 2026-06-17 4 mo ago also EUVD-2018-13478
- cvss
- 3.3
- version 3.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.3%
- EPSS 0.3% chance of exploitation in 30 days, percentile 18%
- public exploits
- 0
- none known
Summary
cPanel before 68.0.27 allows attackers to read root's crontab file during a short time interval upon the enabling of backups (SEC-342).
Patch / fix
- cpanel cpanel 62.0.39, 66.0.35, 68.0.27
Exploit prediction
0.27% chance of exploitation in the next 30 days, higher than 18% 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
-
- CWE-362 Concurrent Execution using Shared Resource with Improper Synchronization
References
-
documentation.cpanel.net
/display/CL/68+Change+Log
release-notes, vendor-advisory
-
news.cpanel.com
/cpanel-tsr-2018-0001-full-disclosure/
vendor-advisory
Sources
- CVE List CVE-2018-20940
- NVD CVE-2018-20940
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.