Medium6.1Cisco

Medium [CVE-2026-20116 +1] Multiple Cisco Contact Center Products Cross-Site Scripting Vulnerabilities

This medium-severity Cisco advisory covers CVE-2026-20116 and CVE-2026-20117 affecting Cisco Unified Contact Center Enterprise, Cisco Unified Contact Center Express, Cisco Finesse.

cisco-sa-cc-xss-MrNAH5Jh Published Mar 11, 2026Updated by vendor Mar 11, 2026

CVE-2026-20116 CVE-2026-20117

Affected products & platforms

CiscoUnified Communications

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Summary

Multiple vulnerabilities in the web-based management interface of Cisco Finesse, Cisco Packaged Contact Center Enterprise (Packaged CCE), Cisco Unified Contact Center Enterprise (Unified CCE), Cisco Unified Contact Center Express (Unified CCX), and Cisco Unified Intelligence Center could allow an unauthenticated, remote attacker to conduct cross-site scripting (XSS) attacks against a user of the interface.

These vulnerabilities exist because the web-based management interface of an affected system does not sufficiently validate user-supplied input. An attacker could exploit these vulnerabil…

Affected versions

Scope: CVE-2026-20116: At the time of publication, this vulnerability affected Cisco Unified Intelligence Center and Cisco Finesse, regardless of device configuration.
12.6 and earlier — Migrate to a fixed release
Release 15.0 (first fixed: 15.0(1)ES202511)
12.6 and earlier — Migrate to a fixed release
Release 15.0 (first fixed: 15.0(1)ES202511)
12.5 SU3 and earlier — Migrate to a fixed release
Release 15.0 (first fixed: 15.0 ES02 (Mar 2026))

Official advisory · high-confidence parse· fetched 2 months ago·verify at source

Fixed versions

15.0(1)ES202511
15.0 ES02 (Mar 2026)

Official advisory · high-confidence parse· fetched 2 months ago·verify at source

Mitigation checklist

Recommended fix / mitigation

Upgrade to the first fixed release for your train per the Fixed Releases table in this advisory.
Release 12.6 and earlier: migrate to a fixed release.
Release 15.0: upgrade to 15.0(1)ES202511.
Release 12.6 and earlier: migrate to a fixed release.
Release 15.0: upgrade to 15.0(1)ES202511.
Release 12.5 SU3 and earlier: migrate to a fixed release.
Release 15.0: upgrade to 15.0 ES02 (Mar 2026).

Workaround status

There are no workarounds that address these vulnerabilities.

Official advisory · high-confidence parse· fetched 2 months ago·verify at source

Sources

Official and corroborating records used to build this advisory.

Cisco Security Advisories (PSIRT)official
Official vendor feed — the source of truth for this advisory. VulniPulse polled this feed and parsed this entry from it. Discovered from the machine-readable feed https://sec.cloudapps.cisco.com/security/center/psirtrss20/CiscoSecurityAdvisory.xml; this link opens the Cisco advisory index instead of the raw feed document.
Cisco
Vendor advisory pageofficial
Advisory page fetched and parsed to extract affected/fixed versions and mitigation guidance beyond what the feed carries.
Cisco

Cross-references

Validate CVE metadata against the authoritative registries.

Official resources

Cisco Unified Communications Manager upgrade guides
Official documentation
Official install and upgrade documentation for Cisco Unified CM.

Discussion(0)

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