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CVE-2018-20916

cPanel before 70.0.23 allows Stored XSS via a WHM Edit MX Entry (SEC-370).

5.4 Medium

cPanel before 70.0.23 allows Stored XSS via a WHM Edit MX Entry (SEC-370).

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
Low
User interaction
Required

What an attacker can affect

Confidentiality
Low
Integrity
Low
Availability
None

Exploit likelihood

0.53%Up 0.1 points since Apr 14, 2021
90%50%10%1%

What each source reports

NVD Score used 5.4

cPanel before 70.0.23 allows Stored XSS via a WHM Edit MX Entry (SEC-370).

Record
CVE-2018-20916
CVSS 3.0
5.4 MediumCVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
CVSS 2.0
3.5 LowAV:N/AC:M/Au:S/C:N/I:P/A:N
Weakness
CWE-79
Updated
2026-11-02
CVE List No score

cPanel before 70.0.23 allows Stored XSS via a WHM Edit MX Entry (SEC-370).

Record
CVE-2018-20916
Updated
2026-11-02
EUVDEUVD-2018-13454 No score

cPanel before 70.0.23 allows Stored XSS via a WHM Edit MX Entry (SEC-370).

Record
EUVD-2018-13454
Updated
2026-11-03
GitHub AdvisoriesGHSA-283r-fxrj-wh27 5.4

cPanel before 70.0.23 allows Stored XSS via a WHM Edit MX Entry (SEC-370).

cPanel before 70.0.23 allows Stored XSS via a WHM Edit MX Entry (SEC-370).

Record
GHSA-283r-fxrj-wh27
CVSS 3.0
5.4 MediumCVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Weakness
CWE-79
Updated
2026-11-02

Affected products

History

History
RecordedChangedSources
aliasesEUVD
first indexedCVE List, GitHub Advisories, NVD

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2018-20916 is a medium vulnerability (CVSS 5.4) in Cpanel, published August 1, 2019. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.53%, the 45th percentile. No source names a fixed version.

References

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