4.8

CVE-2026-20109: cisco cisco packaged contact center enterprise Cross-site Scripting

CVSS: 4.8v3.1MediumDeferred
Published 21-01-2026Last modified 21-01-2026
Open JSON

Vulnerability summary

CVE-2026-20109 is a medium (CVSS 4.8) Cross-site Scripting vulnerability in cisco cisco packaged contact center enterprise. EPSS estimates a 0.21% chance of exploitation in the next 30 days, higher than 10.1% of scored vulnerabilities.

Overall risk
19/100
0100
Low · default modelHow is this calculated?
CVSS score
4.8/10
010
Medium · v3.1 (CVE.org)
EPSS score
0.21%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 21-01-2026
    PublishedVulnerability first disclosed.
  2. 21-01-2026
    Last modifiedVulnerability information updated.

Description

Multiple vulnerabilities in the web-based management interface of Cisco Packaged Contact Center Enterprise (Packaged CCE) and Cisco Unified Contact Center Enterprise (Unified CCE) could allow an authenticated, remote attacker to conduct a cross-site scripting (XSS) attack against a user of the web-based management interface of an affected device. These vulnerabilities exist because the web-based management interface does not properly validate user-supplied input. An attacker could exploit these vulnerabilities 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 these vulnerabilities, the attacker must have valid administrative credentials.

CVSS metrics

2 scores · 2 sources · 1 version

EPSS trend

Probability

0.21%

Chance of exploitation in the next 30 days

Percentile

10%

Versus all other CVEs

30-day change

0.00 pp

From 0.20% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.21%

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 packaged contact center enterprise12.5(1) | 11.0(1) | 12.0(1) | 11.0(2) | 11.5(1) | 10.5(1) | 10.5(2) | 11.6(2) | 10.5(1)_ES7 | 11.6(1) | 10.5(2)_ES8 | 12.6(1) | 12.5(2) | 12.6(2) | 15.0(1)
  • cisco unified contact center enterprise12.6(1)ES3 | 12.6(1)ES1 | 12.6(1) | 12.6(1)ES2 | 12.6(1)SecurityPatch | 12.5(1)ES1 | 12.5(1) | 12.6(1)ES4 | 11.0(1) | 10.5(1) | 12.0(1) | 10.5 | 11.0 | 11.5 | 12.6(2) | 12.6(2)ES1 | 12.6(2)ES2 | 15.0(1) | 12.6(2)ES3 | 15.0(1)ET01 | 15.0(1)_SP1 | 15.0(1)ES202508 | 12.6(2)_ES

1 vendor · 2 products

References

1 links