CVE-2017-18393
cPanel before 68.0.15 does not block a username of postmaster, which might allow reception of...
cPanel before 68.0.15 does not block a username of postmaster, which might allow reception of private e-mail (SEC-326).
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- High
- User interaction
- None
What an attacker can affect
- Confidentiality
- Low
- Integrity
- None
- Availability
- None
Exploit likelihood
What each source reports
NVD Score used
cPanel before 68.0.15 does not block a username of postmaster, which might allow reception of private e-mail (SEC-326).
- Record
CVE-2017-18393- CVSS 3.0
- 2.7 Low
CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N - CVSS 2.0
- 4.0 Medium
AV:N/AC:L/Au:S/C:P/I:N/A:N - Weakness
- CWE-20
- Updated
- 2026-11-02
CVE List No score
cPanel before 68.0.15 does not block a username of postmaster, which might allow reception of private e-mail (SEC-326).
- Record
CVE-2017-18393- Updated
- 2026-11-02
EUVDEUVD-2017-9509 No score
cPanel before 68.0.15 does not block a username of postmaster, which might allow reception of private e-mail (SEC-326).
- Record
EUVD-2017-9509- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-h3cf-h9p9-v7f7
cPanel before 68.0.15 does not block a username of postmaster, which might allow reception of...
cPanel before 68.0.15 does not block a username of postmaster, which might allow reception of private e-mail (SEC-326).
- Record
GHSA-h3cf-h9p9-v7f7- CVSS 3.0
- 2.7 Low
CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N - Weakness
- CWE-20
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2017-18393 is a low vulnerability (CVSS 2.7) in Cpanel, published August 2, 2019. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.70%, the 53rd percentile. No source names a fixed version.