Cisco Identity Services Engine (cisco-sa-ise-xss-964cdxW5)

medium Nessus Plugin ID 286276

Synopsis

The remote device is missing a vendor-supplied security patch.

Description

According to its self-reported version, Cisco ISE is affected by a vulnerability.

- A vulnerability in the web-based management interface of Cisco Identity Services Engine (ISE) and Cisco ISE Passive Identity Connector (ISE-PIC) could allow an authenticated, remote attacker to conduct cross- site scripting (XSS) attacks against a user of the interface. This vulnerability is due to insufficient validation of user-supplied input by the web-based management interface of an affected system. An attacker could exploit this vulnerability by injecting malicious code into specific pages of the interface. 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. To exploit this vulnerability, the attacker must have valid administrative credentials. (CVE-2026-20047)

Please see the included Cisco BIDs and Cisco Security Advisory for more information.

Solution

Upgrade to the relevant fixed version referenced in Cisco bug ID CSCwq83752

See Also

http://www.nessus.org/u?0bb3b816

https://bst.cloudapps.cisco.com/bugsearch/bug/CSCwq83752

Plugin Details

Severity: Medium

ID: 286276

File Name: cisco-sa-ise-xss-964cdxW5.nasl

Version: 1.1

Type: local

Family: CISCO

Published: 1/15/2026

Updated: 1/15/2026

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5.7

CVSS v2

Risk Factor: Medium

Base Score: 4.7

Temporal Score: 3.5

Vector: CVSS2#AV:N/AC:L/Au:M/C:P/I:P/A:N

CVSS Score Source: CVE-2026-20047

CVSS v3

Risk Factor: Medium

Base Score: 4.8

Temporal Score: 4.2

Vector: CVSS:3.0/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/h:cisco:identity_services_engine, cpe:/a:cisco:identity_services_engine, cpe:/a:cisco:identity_services_engine_software

Required KB Items: Host/Cisco/ISE/version

Exploit Ease: No known exploits are available

Patch Publication Date: 1/15/2026

Vulnerability Publication Date: 1/15/2026

Reference Information

CVE: CVE-2026-20047

CWE: 80

CISCO-SA: cisco-sa-ise-xss-964cdxW5

CISCO-BUG-ID: CSCwq83752