CVE-2018-20306

Name: CVE-2018-20306
Creator: NVD / NIST
Published: 2018-12-20T09:29:00.433+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 0.54%

Last modified Jun 17, 2026

CVE-2018-20306 is a vulnerability of currently unknown severity. A stored cross-site scripting (XSS) vulnerability in the web administration user interface of Pulse Secure Virtual Traffic Manager may allow a remote authenticated attacker to inject web script or HTML via a crafted website and steal sensitive data and credentials. Affected releases are Pulse Secure Virtual Traffic Manager 9.9 versions prior to 9.9r2 and 10.4r1.. EPSS estimates a 0.54% chance of exploitation in the next 30 days.

Description

A stored cross-site scripting (XSS) vulnerability in the web administration user interface of Pulse Secure Virtual Traffic Manager may allow a remote authenticated attacker to inject web script or HTML via a crafted website and steal sensitive data and credentials. Affected releases are Pulse Secure Virtual Traffic Manager 9.9 versions prior to 9.9r2 and 10.4r1.

Metrics

EPSS Probability

0.54%

41.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

Affected Software

Vendor	Product	Versions
Pulsesecure	Virtual Traffic Manager	>= 9.9, < 9.9r2
Pulsesecure	Virtual Traffic Manager	>= 10.4, < 10.4r1
Pulsesecure	Virtual Traffic Manager	>= 17.2, < 17.2r1

References

https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA43730Vendor Advisory
https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA43730Vendor Advisory

Timeline

Published: Dec 20, 2018
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2018-20306?

How severe is CVE-2018-20306?

Severity scoring for CVE-2018-20306 is pending analysis. The EPSS model estimates a 0.54% probability of exploitation in the next 30 days.

How do I fix CVE-2018-20306?

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-2018-20306?

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

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Source: NVD / NIST