CVE-2018-20921

Name: CVE-2018-20921
Creator: NVD / NIST
Published: 2019-08-01T15:15:14.5+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 0.65%

Last modified Jun 17, 2026

CVE-2018-20921 is a vulnerability of currently unknown severity. cPanel before 70.0.23 allows stored XSS via a WHM "Delete a DNS Zone" action (SEC-375).. EPSS estimates a 0.65% chance of exploitation in the next 30 days.

Description

cPanel before 70.0.23 allows stored XSS via a WHM "Delete a DNS Zone" action (SEC-375).

Metrics

EPSS Probability

0.65%

46.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

Affected Software

Vendor	Product	Versions
Cpanel	Cpanel	< 70.0.23

References

https://documentation.cpanel.net/display/CL/70+Change+LogRelease Notes, Vendor Advisory
https://documentation.cpanel.net/display/CL/70+Change+LogRelease Notes, Vendor Advisory

Timeline

Published: Aug 1, 2019
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2018-20921?

cPanel before 70.0.23 allows stored XSS via a WHM "Delete a DNS Zone" action (SEC-375).

How severe is CVE-2018-20921?

Severity scoring for CVE-2018-20921 is pending analysis. The EPSS model estimates a 0.65% probability of exploitation in the next 30 days.

How do I fix CVE-2018-20921?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2018-20921?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST