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CVE-2025-20358

Cisco Unified Contact Center Express Editor Authentication Bypass Vulnerability

CVSS 9.4 CRITICALEPSS 0.9%CWE-306
Vexday Risk Score
28Low
SSVC decision (CISA)
Track
No exploitation signal → monitor
CVSS 9.4EPSS 0.9%KEV nãoPoC Nuclei Metasploit Patch
Lifecycle
05 Nov 2025Published on NVD
Recommendation: Monitor — no exploitation signal at the moment.
A vulnerability in the Contact Center Express (CCX) Editor application of Cisco Unified CCX could allow an unauthenticated, remote attacker to bypass authentication and obtain administrative permissions pertaining to script creation and execution. This vulnerability is due to improper authentication mechanisms in the communication between the CCX Editor and an affected Unified CCX server. An attacker could exploit this vulnerability by redirecting the authentication flow to a malicious server and tricking the CCX Editor into believing the authentication was successful. A successful exploit could allow the attacker to create and execute arbitrary scripts on the underlying operating system of an affected Unified CCX server, as an internal non-root user account.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L

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