Cisco Identity Services Engine Stored Cross-Site Scripting Vulnerabilities – Source:sec.cloudapps.cisco.com

Medium

Summary

• Multiple vulnerabilities in Cisco Identity Services Engine (ISE) and Cisco ISE Passive Identity Connector (ISE-PIC) could allow an authenticated, remote attacker to either modify part of the configuration of an affected device or conduct a stored cross-site scripting (XSS) attack.

  For more information about these vulnerabilities, see the Details section of this advisory.

  Cisco has released software updates that address these vulnerabilities. There are no workarounds that address these vulnerabilities.

  This advisory is available at the following link:
  https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ise_xss_acc_cont-YsR4uT4U

Affected Products

• At the time of publication, these vulnerabilities affected Cisco ISE Software. Cisco ISE-PIC Software was affected by CVE-2025-20331, but not by CVE-2025-20332.

  For information about which Cisco software releases were vulnerable at the time of publication, see the Fixed Software section of this advisory. See the Details section in the bug ID(s) at the top of this advisory for the most complete and current information.

  Only products listed in the Vulnerable Products section of this advisory are known to be affected by these vulnerabilities.

Details

• The vulnerabilities are not dependent on one another. Exploitation of one of the vulnerabilities is not required to exploit the other vulnerability. In addition, a software release that is affected by one of the vulnerabilities may not be affected by the other vulnerability.

  Details about the vulnerabilities are as follows:

  CVE-2025-20331: Cisco ISE Stored XSS Vulnerability

  A vulnerability in the web-based management interface of Cisco ISE and Cisco ISE-PIC could allow an authenticated, remote attacker to conduct a stored XSS attack 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 at least a low-privileged account on the affected device.

  Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.

  Bug ID(s): CSCwk14928
  CVE ID: CVE-2025-20331
  Security Impact Rating (SIR): Medium
  CVSS Base Score: 5.4
  CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

  CVE-2025-20332: Cisco ISE Authorization Bypass Vulnerability

  A vulnerability in the web-based management interface of Cisco ISE could allow an authenticated, remote attacker to modify parts of the configuration on an affected device.

  This vulnerability is due to the lack of server-side validation of Administrator permissions. An attacker could exploit this vulnerability by submitting a crafted HTTP request to an affected system. A successful exploit could allow the attacker to modify descriptions of files on a specific page. To exploit this vulnerability, an attacker would need valid read-only Administrator credentials.

  Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.

  Bug ID(s): CSCwm03606
  CVE ID: CVE-2025-20332
  Security Impact Rating (SIR): Medium
  CVSS Base Score: 4.3
  CVSS Vector:CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

Workarounds

• There are no workarounds that address these vulnerabilities.

Fixed Software

• When considering software upgrades, customers are advised to regularly consult the advisories for Cisco products, which are available from the Cisco Security Advisories page, to determine exposure and a complete upgrade solution.

  In all cases, customers should ensure that the devices to be upgraded contain sufficient memory and confirm that current hardware and software configurations will continue to be supported properly by the new release. If the information is not clear, customers are advised to contact the Cisco Technical Assistance Center (TAC) or their contracted maintenance providers.

  Fixed Releases

  At the time of publication, the release information in the following tables was accurate. See the Details section in the bug ID(s) at the top of this advisory for the most complete and current information.

  The left column lists Cisco software releases. The center column and right column indicate whether a release was affected by these vulnerabilities and the first release that includes the fix for these vulnerabilities.

  Cisco ISE Release	First Fixed Release for CVE-2025-20331	First Fixed Release for CVE-2025-20332
  3.0 and earlier	Migrate to a fixed release.	Migrate to a fixed release.
  3.1	3.1P10	3.1P10
  3.21	3.2P8 (Nov 2025)	3.2P8 (Nov 2025)
  3.3	3.3P4	3.3P4
  3.4	Not vulnerable.	3.4P1

  1. A hot patch is available upon request. Contact the Cisco Technical Assistance Center (TAC).

  Cisco ISE-PIC Release	First Fixed Release for CVE-2025-20331	First Fixed Release for CVE-2025-20332
  3.0 and earlier	Migrate to a fixed release.	Not affected.
  3.1	3.1P10	Not affected.
  3.2	3.2P8 (Nov 2025)	Not affected.
  3.3	3.3P4	Not affected.
  3.4	Not vulnerable.	Not affected.

  For instructions on upgrading a device, see the Upgrade Guides located on the Cisco Identity Service Engine support page.

  The Cisco Product Security Incident Response Team (PSIRT) validates only the affected and fixed release information that is documented in this advisory.

Exploitation and Public Announcements

• The Cisco PSIRT is not aware of any public announcements or malicious use of the vulnerabilities that are described in this advisory.

Source

• Cisco would like to thank the following people for reporting these vulnerabilities:

  • Matei Badanoiu and Razvan Ilisanu of Deloitte: CVE-2025-20331
  • Matei Badanoiu, Razvan Ilisanu, and Sebastian Radulea of Deloitte: CVE-2025-20332

Cisco Security Vulnerability Policy

• To learn about Cisco security vulnerability disclosure policies and publications, see the Security Vulnerability Policy. This document also contains instructions for obtaining fixed software and receiving security vulnerability information from Cisco.

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Related to This Advisory

• Cross-Site Scripting

URL

• https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ise_xss_acc_cont-YsR4uT4U

Revision History

• Version	Description	Section	Status	Date
  1.0	Initial public release.	–	Final	2025-AUG-06

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