Reflected Cross-Site Scripting in Cisco Identity Services Engine Management Interface
CVE-2026-20309

6.1MEDIUM

Key Information:

Vendor

Cisco
Status
Cisco Identity Services Engine Software
Vendor
CVE Published:
16 September 2026

Badges

👾 Exploit Exists

What is CVE-2026-20309?

A flaw in the web-based management interface of Cisco Identity Services Engine (ISE) permits unauthenticated attackers to initiate reflected cross-site scripting (XSS) attacks. Due to inadequate validation of user-supplied input, an attacker could craft a malicious link that exploits this vulnerability. When a user of the management interface clicks this link, it could lead to the execution of arbitrary scripts in the context of the interface, potentially allowing the attacker to retrieve sensitive information stored in the user's browser.

Affected Version(s)

Cisco Identity Services Engine Software 3.1.0

Cisco Identity Services Engine Software 3.1.0 p1

Cisco Identity Services Engine Software 3.1.0 p3

References

https://sec.cloudapps.cisco.com/security/center/content/C...

CVSS V3.1

Score:
6.1
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Changed

Timeline

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

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