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Pulse Connect Secure CVE-2020-8262

MEDIUM
Cross-site Scripting (XSS) (CWE-79)
2020-10-28 support@hackerone.com
6.1
CVSS 3.1 · NVD
View

Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A05:2025 - Injection
ASVS 5.0
V1 - Encoding and Sanitization Output encoding, context-aware escaping
MITRE ATT&CK

2 techniques across 2 tactics: Initial Access, Execution

The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up.

Impact

CVSS score of 6.1 (MEDIUM). Attack characteristics: network attack vector, low complexity, no privileges required, user interaction required.

Exploit ScenarioDerived

A remote attacker could inject malicious scripts into web pages viewed by other users by sending crafted requests to the affected application. No authentication is required to exploit this vulnerability.

This Month Plan within 30 days. Why: MEDIUM severity (CVSS 4.0-6.9).
No patch listed yet 1.8% exploitation probability (EPSS)

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AnalysisAI

A vulnerability in the Pulse Connect Secure / Pulse Policy Secure below 9.1R9 could allow attackers to conduct Cross-Site Scripting (XSS) and Open Redirection for authenticated user web interface. Rated medium severity (CVSS 6.1), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Sanitize all user input, use Content-Security-Policy headers, encode output contextually (HTML, JS, URL). Use frameworks with built-in XSS protection.

Affects your stack

Find out whether the stacks and servers you run are on an affected version.

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

This vulnerability is classified as Cross-Site Scripting (XSS) (CWE-79), which allows attackers to inject malicious scripts into web pages viewed by other users. A vulnerability in the Pulse Connect Secure / Pulse Policy Secure below 9.1R9 could allow attackers to conduct Cross-Site Scripting (XSS) and Open Redirection for authenticated user web interface. Affected products include: Ivanti Connect Secure, Ivanti Policy Secure, Pulsesecure Pulse Connect Secure, Pulsesecure Pulse Policy Secure.

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  • Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

NVD PRIMARY 6.1 MEDIUM
AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
None

DescriptionNVD

A vulnerability in the Pulse Connect Secure / Pulse Policy Secure below 9.1R9 could allow attackers to conduct Cross-Site Scripting (XSS) and Open Redirection for authenticated user web interface.

Threat Intelligence Overview

EPSS Score
1.8%
Top 24% exploitable
Data Quality
2 sources
Confidence: Low

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity MEDIUM
CISA KEV No
Public POC No
EPSS 1.8%
Patch available No
Active threat No
Deciding rule
MEDIUM severity (CVSS 4.0-6.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Scheduled
Exploitation· derived
None
System Exposure· derived
Open
Automatable· derived
No
Human Impact· derived
Medium

Priority Score

32
Low Medium High Critical
KEV: 0
EPSS: +2
CVSS: +30
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Cross-Site Scripting occurs when an application accepts untrusted data and sends it to a web browser without proper validation or encoding.

Affected Products (CPE)NVD

cpe:2.3:a:ivanti:connect_secure:9.1:r1:*:*:*:*:*:*
cpe:2.3:a:ivanti:connect_secure:9.1:r2:*:*:*:*:*:*
cpe:2.3:a:ivanti:connect_secure:9.1:r3:*:*:*:*:*:*
cpe:2.3:a:ivanti:connect_secure:9.1:r4:*:*:*:*:*:*
cpe:2.3:a:ivanti:connect_secure:9.1:r5:*:*:*:*:*:*
cpe:2.3:a:ivanti:connect_secure:9.1:r6:*:*:*:*:*:*
cpe:2.3:a:ivanti:connect_secure:9.1:r7:*:*:*:*:*:*
cpe:2.3:a:ivanti:connect_secure:9.1:r8:*:*:*:*:*:*
cpe:2.3:a:ivanti:policy_secure:9.1:r1:*:*:*:*:*:*
cpe:2.3:a:ivanti:policy_secure:9.1:r2:*:*:*:*:*:*
cpe:2.3:a:ivanti:policy_secure:9.1:r3:*:*:*:*:*:*
cpe:2.3:a:ivanti:policy_secure:9.1:r4:*:*:*:*:*:*
cpe:2.3:a:ivanti:policy_secure:9.1:r5:*:*:*:*:*:*
cpe:2.3:a:ivanti:policy_secure:9.1:r6:*:*:*:*:*:*
cpe:2.3:a:ivanti:policy_secure:9.1:r7:*:*:*:*:*:*
cpe:2.3:a:ivanti:policy_secure:9.1:r8:*:*:*:*:*:*
cpe:2.3:a:pulsesecure:pulse_connect_secure:*:*:*:*:*:*:*:*
cpe:2.3:a:pulsesecure:pulse_policy_secure:*:*:*:*:*:*:*:*
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CVE-2020-11580 CRITICAL POC
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CVE-2020-11582 HIGH POC
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Artifex Ghostscript 9.25 and earlier allows attackers to bypass a sandbox protection mechanism via vectors involving the

CVE-2020-11581 HIGH POC
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An issue was discovered in Pulse Secure Pulse Connect Secure (PCS) through 2020-04-06. Rated high severity (CVSS 8.1), t

CVE-2019-11508 HIGH POC
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In Pulse Secure Pulse Connect Secure (PCS) before 8.1R15.1, 8.2 before 8.2R12.1, 8.3 before 8.3R7.1, and 9.0 before 9.0R

CVE-2019-11542 HIGH POC
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In Pulse Secure Pulse Connect Secure version 9.0RX before 9.0R3.4, 8.3RX before 8.3R7.1, 8.2RX before 8.2R12.1, and 8.1R

CVE-2016-4787 CRITICAL
10.0 May 26

Pulse Connect Secure (PCS) 8.2 before 8.2r1, 8.1 before 8.1r2, 8.0 before 8.0r10, and 7.4 before 7.4r13.4 allow remote a

CVE-2020-8238 MEDIUM POC
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A vulnerability in the authenticated user web interface of Pulse Connect Secure and Pulse Policy Secure < 9.1R8.2 could

CVE-2018-6320 CRITICAL
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A vulnerability has been discovered in login.cgi in Pulse Secure Pulse Connect Secure (PCS) 8.1RX before 8.1R12 and 8.3R

CVE-2018-5299 CRITICAL
9.8 Jan 16

A stack-based Buffer Overflow Vulnerability exists in the web server in Pulse Secure Pulse Connect Secure (PCS) before 8

CVE-2015-7322 MEDIUM POC
5.0 Oct 05

The Secure Meeting (Pulse Collaboration) in Pulse Connect Secure (formerly Juniper Junos Pulse) before 7.1R22.1, 7.4, 8.

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