CVE-2022-20959

A vulnerability in the External RESTful Services (ERS) API of Cisco Identity Services Engine (ISE) Software could allow an authenticated, remote attacker to conduct a cross-site scripting (XSS) attack against a user of the interface of an affected device. This vulnerability is due to insufficient input validation. An attacker could exploit this vulnerability by persuading an authenticated administrator of the web-based management interface to click a malicious link. A successful exploit could allow the attacker to execute arbitrary script code in the context of the affected interface or access sensitive, browser-based information.

• CWE-79
• CWE-79

• https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ise-xss-twLnpy3MVendor Advisory
• https://yoroi.company/en/research/cve-advisory-full-disclosure-cisco-ise-cross-site-scripting/
• https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ise-xss-twLnpy3MVendor Advisory
• https://yoroi.company/en/research/cve-advisory-full-disclosure-cisco-ise-cross-site-scripting/

Published

Oct 26, 2022

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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