CVE-2026-20117

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 v3 6.1 MEDIUM

6.1^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 2.7

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope CHANGED

References

Link	Resource
https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-cc-xss-MrNAH5Jh	Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:cisco:unified_contact_center_express:*:*:*:*:*:*:*:*

History

No history.

Information

Published : 2026-03-11 17:16

Updated : 2026-07-08 19:12

NVD link : CVE-2026-20117

Mitre link : CVE-2026-20117

CVE.ORG link : CVE-2026-20117

JSON object : View

Products Affected

cisco

unified_contact_center_express

CWE

CWE-79

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

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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."}, {"lang": "es", "value": "Una vulnerabilidad en la interfaz de gesti\u00f3n basada en web de Cisco Unified Contact Center Express (Unified CCX) podr\u00eda permitir a un atacante remoto no autenticado realizar ataques de cross-site scripting (XSS) contra un usuario de la interfaz.\n\nEsta vulnerabilidad existe porque la interfaz de gesti\u00f3n basada en web de un sistema afectado no valida suficientemente la entrada proporcionada por el usuario. Un atacante podr\u00eda explotar esta vulnerabilidad inyectando c\u00f3digo malicioso en p\u00e1ginas espec\u00edficas de la interfaz. Un exploit exitoso podr\u00eda permitir al atacante ejecutar c\u00f3digo de script arbitrario en el contexto de la interfaz afectada o acceder a informaci\u00f3n sensible basada en el navegador."}], "lastModified": "2026-07-08T19:12:13.653", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:cisco:unified_contact_center_express:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "6E7F7C37-40B9-40E2-A650-AFCD25B643FE", "versionEndIncluding": "15.0\\(1\\)ES01"}], "operator": "OR"}]}], "sourceIdentifier": "psirt@cisco.com"}