What is CVE-2019-1673?

CVE-2019-1673 is a medium-severity vulnerability in Cisco Identity Services Engine Software, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2019-02-08.

How severe is CVE-2019-1673?

Medium severity. CVSS v3 base score is 5.4 out of 10.

XSS in Cisco Identity Services Engine Software

CVE-2019-1673

A vulnerability in the web-based management interface of Cisco Identity Services Engine (ISE) could allow an authenticated, remote attacker to conduct a cross-site scripting (XSS) attack against a user of the web-based interface. The vulnerability is due to insufficient input validation of some parameters passed to the web-based management interface. An attacker could exploit this vulnerability by convincing a user of the interface to click a specific link. A successful exploit could allow the attacker to execute arbitrary script code in the context of the interface or allow the attacker to access sensitive browser-based information. For information about fixed software releases, consult the Cisco bug ID at https://quickview.cloudapps.cisco.com/quickview/bug/CSCvn64652. When considering software upgrades, customers are advised to regularly consult the advisories for Cisco products, which are available from the Cisco Security Advisories and Alerts page, to determine exposure and a complete upgrade solution.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2019-02-08 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.008 (57.1th percentile), scored 2026-10-25.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 57th percentile — 57.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.008 · newest: 0.008 · change: 0.000

Affected products

Cisco Identity Services Engine Software — versions 2.5(0.353)
Cisco Identity Services Engine — versions 2.5(0.353), 2.5\(0.353\)

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

www.securityfocus.com/bid/106915 (Third Party Advisory, vdb-entry)
tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190206… (vendor-advisory, Vendor Advisory)

Frequently asked questions

What is CVE-2019-1673?: CVE-2019-1673 is a medium-severity vulnerability in Cisco Identity Services Engine Software, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2019-02-08.
How severe is CVE-2019-1673?: Medium severity. CVSS v3 base score is 5.4 out of 10.