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TI-2023-06804 Aliases CVE-2023-20096GHSA-4v5g-36mr-fcgx

Cisco Unified Contact Center Express Stored Cross-Site Scripting Vulnerability

Priority LOW 25CWE-79Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
Required
Attack complexity
Low
Impact type
Cross-site scripting
Confidentiality · integrity · availability
Low · Low · None
Fix status
No fix listed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-79.

Summary

A vulnerability in the web-based management interface of Cisco Unified Contact Center Express (Unified CCX) could allow an authenticated, remote attacker to perform a stored cross-site scripting (XSS) attack. This vulnerability is due to insufficient input validation of user-supplied data. An attacker could exploit this vulnerability by entering crafted text into various input fields within the web-based management interface. A successful exploit could allow the attacker to perform a stored XSS attack, which could allow the execution of scripts within the context of other users of the interface.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.005 43rd percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
CiscoCisco Unified Contact Center Expressall versions—No fix listedCNA
  • Cisco Unified Contact Center Express VendorCisco Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:cisco:unified_contact_center_express:*:*:*:*:*:*:*:*before 12.5\(1\)su3VulnerableCisco
  • cpe:2.3:a:cisco:unified_contact_center_express:*:*:*:*:*:*:*:* Versions before 12.5\(1\)su3 Vulnerable ·Cisco

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2023-20096
  2. 2026-10-03 Alias added: GHSA-4v5g-36mr-fcgx

References

Advisory 1

  • TI-2021-19919 Apache Log4j2 JNDI features do not protect against attacker controlled LDAP and other JNDI related endpoints KEVCVSS 3.1CRITICAL 10.0
  • TI-2020-02838 Cisco Unified Contact Center Express Remote Code Execution Vulnerability CVSS 3.1CRITICAL 9.8
  • TI-2018-00362 Cross-site scripting in Cisco Unified Contact Center Express unknown CVSS 3.0CRITICAL 9.8
  • TI-2024-13188 Deserialization of untrusted data in Cisco Unified Contact Center Enterprise CVSS 3.1CRITICAL 10.0
  • TI-2025-14653 Cisco Unified Contact Center Express Editor Authentication Bypass Vulnerability CVSS 3.1CRITICAL 9.8
  • TI-2017-09109 Improper authentication in Cisco Voice Operating System CVSS 3.0CRITICAL 9.8
See all 47 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences