A vulnerability in the SAML 2.0 single sign-on (SSO) feature of Cisco Secure Firewall ASA Software and Cisco Secure Firewall Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to conduct a cross-site scripting (XSS) attack against the SAML feature and access sensitive, browser-based information.

This vulnerability is due to insufficient input validation of multiple HTTP parameters. An attacker could exploit this vulnerability by persuading a user to access a malicious link. A successful exploit could allow the attacker to conduct a reflected XSS attack through an affected device.
Advisories

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Fixes

Solution

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Workaround

No workaround given by the vendor.

History

Wed, 04 Mar 2026 18:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Wed, 04 Mar 2026 18:00:00 +0000

Type Values Removed Values Added
Description A vulnerability in the SAML 2.0 single sign-on (SSO) feature of Cisco Secure Firewall ASA Software and Cisco Secure Firewall Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to conduct a cross-site scripting (XSS) attack against the SAML feature and access sensitive, browser-based information. This vulnerability is due to insufficient input validation of multiple HTTP parameters. An attacker could exploit this vulnerability by persuading a user to access a malicious link. A successful exploit could allow the attacker to conduct a reflected XSS attack through an affected device.
Title Cisco Secure Firewall Adaptive Security Appliance and Secure Firewall Threat Defense Software SAML Reflected Cross-Site Scripting Vulnerability
Weaknesses CWE-79
References
Metrics cvssV3_1

{'score': 6.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: cisco

Published:

Updated: 2026-03-04T18:09:27.083Z

Reserved: 2025-10-08T11:59:15.370Z

Link: CVE-2026-20102

cve-icon Vulnrichment

Updated: 2026-03-04T18:09:21.938Z

cve-icon NVD

Status : Received

Published: 2026-03-04T18:16:25.620

Modified: 2026-03-04T18:16:25.620

Link: CVE-2026-20102

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses