6.1

CVE-2026-20117: cisco cisco unified contact center express Cross-site Scripting

CVSS: 6.1v3.1MediumAnalyzed
Published 11-03-2026Last modified 11-03-2026
Open JSON

Vulnerability summary

CVE-2026-20117 is a medium (CVSS 6.1) Cross-site Scripting vulnerability in cisco cisco unified contact center express. EPSS estimates a 0.22% chance of exploitation in the next 30 days, higher than 11.2% of scored vulnerabilities.

Overall risk
24/100
0100
Low · default modelHow is this calculated?
CVSS score
6.1/10
010
Medium · v3.1 (CVE.org)
EPSS score
0.22%
0%100%
Low · +0.01 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 11-03-2026
    PublishedVulnerability first disclosed.
  2. 11-03-2026
    Last modifiedVulnerability information updated.

Description

A vulnerability in the web-based management interface of Cisco Unified Contact Center Express (Unified CCX) could allow an unauthenticated, remote attacker to conduct cross-site scripting (XSS) attacks against a user of the interface. This vulnerability exists because the web-based management interface of an affected system does not sufficiently validate user-supplied input. 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.

CVSS metrics

2 scores · 2 sources · 1 version

EPSS trend

Probability

0.22%

Chance of exploitation in the next 30 days

Percentile

11%

Versus all other CVEs

30-day change

+0.01 pp

From 0.21% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.22%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Cisco2 products
  • cisco unified contact center express10.5(1)SU1 | 10.6(1) | 11.6(1) | 10.6(1)SU1 | 10.6(1)SU3 | 11.6(2) | 12.0(1) | 11.0(1)SU1 | 11.5(1)SU1 | 10.5(1) | 12.5(1) | 12.5(1)SU1 | 12.5(1)SU2 | 12.5(1)SU3 | 12.5(1)_SU03_ES01 | 12.5(1)_SU03_ES02 | 12.5(1)_SU02_ES03 | 12.5(1)_SU02_ES04 | 12.5(1)_SU02_ES02 | 12.5(1)_SU01_ES02 | 12.5(1)_SU01_ES03 | 12.5(1)_SU02_ES01 | 11.6(2)ES07 | 11.6(2)ES08 | 12.5(1)_SU01_ES01 | 12.0(1)ES04 | 12.5(1)ES02 | 12.5(1)ES03 | 11.6(2)ES06 | 12.5(1)ES01 | 12.0(1)ES03 | 12.0(1)ES01 | 11.6(2)ES05 | 12.0(1)ES02 | 11.6(2)ES04 | 11.6(2)ES03 | 11.6(2)ES02 | 11.6(2)ES01 | 10.6(1)SU3ES03 | 11.0(1)SU1ES03 | 10.6(1)SU3ES01 | 10.5(1)SU1ES10 | 11.5(1)SU1ES03 | 11.6(1)ES02 | 11.5(1)ES01 | 10.6(1)SU2 | 10.6(1)SU2ES04 | 11.6(1)ES01 | 10.6(1)SU3ES02 | 11.5(1)SU1ES02 | 11.5(1)SU1ES01 | 11.0(1)SU1ES02 | 12.5(1)_SU03_ES03 | 12.5(1)_SU03_ES04 | 12.5(1)_SU03_ES05 | UCCX 15.0.1 | 12.5(1)_SU03_ES06 | 12.5(1)_SU03_ES07 | 15.0(1) | 15.0(1)ES01 | 15.0(1)ES-MSOauth | 1501_ES01_CSCws06843
  • unified_contact_center_express≤ 15.0\(1\)ES01

1 vendor · 2 products

References

1 links