CVE-2026-20309

Cisco Identity Services Engine Cross-Site Scripting Vulnerability

State
Published
Severity
6.1 Medium
Published
Sep 16, 2026
Updated
Sep 17, 2026
Reserved
Oct 8, 2025

Read the record on cve.org

Description

A vulnerability in the web-based management interface of Cisco Identity Services Engine (ISE) could allow an unauthenticated, remote attacker to conduct a reflected cross-site scripting (XSS) attack against a user of the interface.

This vulnerability exists because the web-based management interface does not properly validate user-supplied input. An attacker could exploit this vulnerability by persuading a user of the interface to click a crafted 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.

Scores

CVSSScoreVectorSource
3.16.1 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:Ncisco

Weaknesses

  • CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Affected Products

ProductVersions
Cisco Identity Services Engine SoftwareCisco
  • 3.1.0Affected
  • 3.1.0 p1Affected
  • 3.1.0 p3Affected
  • 3.1.0 p2Affected
  • 3.2.0Affected
  • 3.1.0 p4Affected
  • 3.1.0 p5Affected
  • 3.2.0 p1Affected
  • 3.1.0 p6Affected
  • 3.2.0 p2Affected
  • 3.1.0 p7Affected
  • 3.3.0Affected
  • 3.2.0 p3Affected
  • 3.2.0 p4Affected
  • 3.1.0 p8Affected
  • 3.2.0 p5Affected
  • 3.2.0 p6Affected
  • 3.1.0 p9Affected
  • 3.3 Patch 2Affected
  • 3.3 Patch 1Affected
  • 3.3 Patch 3Affected
  • 3.4.0Affected
  • 3.2.0 p7Affected
  • 3.3 Patch 4Affected
  • 3.4 Patch 1Affected
  • and 22 more versions

References

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