CVE-2018-20807: XSS

Published Mar 16, 2019
·
Updated

An XSS issue has been found in welcome.cgi in Pulse Secure Pulse Connect Secure (PCS) 8.1.x before 8.1R12, 8.2.x before 8.2R9, and 8.3.x before 8.3R3 due to one of the URL parameters not being sanitized properly.

Affected Software

78 affected components
PulseSecure Pulse Connect Secure=8.1-r1.0
PulseSecure Pulse Connect Secure=8.1-r1.1
PulseSecure Pulse Connect Secure=8.1-r10.0
PulseSecure Pulse Connect Secure=8.1-r11.0
PulseSecure Pulse Connect Secure=8.1-r11.1
PulseSecure Pulse Connect Secure=8.1-r2.0
PulseSecure Pulse Connect Secure=8.1-r2.1
PulseSecure Pulse Connect Secure=8.1-r3.1
PulseSecure Pulse Connect Secure=8.1-r3.2
PulseSecure Pulse Connect Secure=8.1-r4.0
PulseSecure Pulse Connect Secure=8.1-r4.1
PulseSecure Pulse Connect Secure=8.1-r5.0
PulseSecure Pulse Connect Secure=8.1-r6.0
PulseSecure Pulse Connect Secure=8.1-r7
PulseSecure Pulse Connect Secure=8.1-r7.0
PulseSecure Pulse Connect Secure=8.1-r8.0
PulseSecure Pulse Connect Secure=8.1-r9.0
PulseSecure Pulse Connect Secure=8.1-r9.1
PulseSecure Pulse Connect Secure=8.1-r9.2
PulseSecure Pulse Connect Secure=8.2-r1
PulseSecure Pulse Connect Secure=8.2-r1.0
PulseSecure Pulse Connect Secure=8.2-r1.1
PulseSecure Pulse Connect Secure=8.2-r2.0
PulseSecure Pulse Connect Secure=8.2-r3.0
PulseSecure Pulse Connect Secure=8.2-r3.1
PulseSecure Pulse Connect Secure=8.2-r4.0
PulseSecure Pulse Connect Secure=8.2-r4.1
PulseSecure Pulse Connect Secure=8.2-r5.0
PulseSecure Pulse Connect Secure=8.2-r5.1
PulseSecure Pulse Connect Secure=8.2-r6.0
PulseSecure Pulse Connect Secure=8.2-r7.0
PulseSecure Pulse Connect Secure=8.2-r7.1
PulseSecure Pulse Connect Secure=8.2-r7.2
PulseSecure Pulse Connect Secure=8.2-r8.0
PulseSecure Pulse Connect Secure=8.2-r8.1
PulseSecure Pulse Connect Secure=8.2-r8.2
PulseSecure Pulse Connect Secure=8.3-r1
PulseSecure Pulse Connect Secure=8.3-r2
PulseSecure Pulse Connect Secure=8.3-r2.1
Ivanti Connect Secure=8.1-r1.0
Ivanti Connect Secure=8.1-r1.1
Ivanti Connect Secure=8.1-r10.0
Ivanti Connect Secure=8.1-r11.0
Ivanti Connect Secure=8.1-r11.1
Ivanti Connect Secure=8.1-r2.0
Ivanti Connect Secure=8.1-r2.1
Ivanti Connect Secure=8.1-r3.1
Ivanti Connect Secure=8.1-r3.2
Ivanti Connect Secure=8.1-r4.0
Ivanti Connect Secure=8.1-r4.1
Ivanti Connect Secure=8.1-r5.0
Ivanti Connect Secure=8.1-r6.0
Ivanti Connect Secure=8.1-r7
Ivanti Connect Secure=8.1-r7.0
Ivanti Connect Secure=8.1-r8.0
Ivanti Connect Secure=8.1-r9.0
Ivanti Connect Secure=8.1-r9.1
Ivanti Connect Secure=8.1-r9.2
Ivanti Connect Secure=8.2-r1
Ivanti Connect Secure=8.2-r1.0
Ivanti Connect Secure=8.2-r1.1
Ivanti Connect Secure=8.2-r2.0
Ivanti Connect Secure=8.2-r3.0
Ivanti Connect Secure=8.2-r3.1
Ivanti Connect Secure=8.2-r4.0
Ivanti Connect Secure=8.2-r4.1
Ivanti Connect Secure=8.2-r5.0
Ivanti Connect Secure=8.2-r5.1
Ivanti Connect Secure=8.2-r6.0
Ivanti Connect Secure=8.2-r7.0
Ivanti Connect Secure=8.2-r7.1
Ivanti Connect Secure=8.2-r7.2
Ivanti Connect Secure=8.2-r8.0
Ivanti Connect Secure=8.2-r8.1
Ivanti Connect Secure=8.2-r8.2
Ivanti Connect Secure=8.3-r1
Ivanti Connect Secure=8.3-r2
Ivanti Connect Secure=8.3-r2.1

Event History

Mar 16, 2019
CVE Published
via MITRE·03:00 AM
Data Sourced
via MITRE·03:00 AM
Description

Frequently Asked Questions

1

What is CVE-2018-20807 about?

CVE-2018-20807 is an XSS issue found in welcome.cgi in Pulse Secure Pulse Connect Secure (PCS) 8.1.x before 8.1R12, 8.2.x before 8.2R9, and 8.3.x before 8.3R3 due to one of the URL parameters not being sanitized properly.

2

What is the severity of CVE-2018-20807?

The severity of CVE-2018-20807 is medium with a CVSS score of 6.1.

3

What software versions are affected by CVE-2018-20807?

Pulse Secure Pulse Connect Secure (PCS) versions 8.1.x before 8.1R12, 8.2.x before 8.2R9, and 8.3.x before 8.3R3 are affected by CVE-2018-20807.

4

How can Pulse Secure Pulse Connect Secure (PCS) be fixed to address CVE-2018-20807?

To fix CVE-2018-20807, update Pulse Secure Pulse Connect Secure (PCS) to version 8.1R12, 8.2R9, or 8.3R3.

5

Where can I find more information about CVE-2018-20807?

More information about CVE-2018-20807 can be found in the following knowledge base article: [link](https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA43730/)

Company

Resources

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