What is CVE-2026-20170?

CVE-2026-20170 is a medium-severity vulnerability in Cisco Webex Contact Center, classified under Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS). CVSS score: 6.1/10. Published 2026-04-15.

How severe is CVE-2026-20170?

Medium severity. CVSS v3 base score is 6.1 out of 10.

XSS in Cisco Webex Contact Center

CVE-2026-20170

A vulnerability in the Desktop Agent functionality of Cisco Webex Contact Center could have allowed an unauthenticated, remote attacker to conduct cross-site scripting attacks. Cisco has addressed this vulnerability in the Cisco Webex Cont…

EPSS: 0.001 (17.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

Affected products

Cisco Webex Contact Center — versions N/A

Weakness classification (CWE)

CWE-80 — Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS)

References

cisco-sa-webexcc-xss-WEX5nUnA

Frequently asked questions

What is CVE-2026-20170?: CVE-2026-20170 is a medium-severity vulnerability in Cisco Webex Contact Center, classified under Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS). CVSS score: 6.1/10. Published 2026-04-15.
How severe is CVE-2026-20170?: Medium severity. CVSS v3 base score is 6.1 out of 10.