CVE-2021-22920

Published: Aug 5, 2021Modified: Jun 17, 2026

6.5

Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

Exploitability: 2.8 / Impact: 3.6

Source: NVD

Description

A vulnerability has been discovered in Citrix ADC (formerly known as NetScaler ADC) and Citrix Gateway (formerly known as NetScaler Gateway), and Citrix SD-WAN WANOP Edition models 4000-WO, 4100-WO, 5000-WO, and 5100-WO. These vulnerabilities, if exploited, could lead to a phishing attack through a SAML authentication hijack to steal a valid user session.

Affected (4)

Products: Citrix: Application Delivery Management, Gateway

Citrix

2 products

Application Delivery Management

Gateway

Configuration A

4 vulnerable

Vulnerable Software	Affected Versions
Citrix Application Delivery Management	Version 12.1-62.25
Citrix Application Delivery Management	Version 13.0-82.42
Citrix Gateway	Version 12.1-62.25
Citrix Gateway	Version 13.0-82.42

Related CWEs

CWE-284

Improper Access Control

The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.

References (2)

https://support.citrix.com/article/CTX319135

Source: support@hackerone.com

Vendor Advisory

https://support.citrix.com/article/CTX319135

Source: af854a3a-2127-422b-91ae-364da2661108

Vendor Advisory

Timeline

No history available yet.