Cisco Unified Contact Center Express Editor Authentication Bypass Vulnerability
Summary
| CVE | CVE-2025-20358 |
|---|---|
| State | PUBLISHED |
| Assigner | cisco |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2025-11-05 17:15:38 UTC |
| Updated | 2026-06-17 08:41:34 UTC |
| Description | 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. |
Risk And Classification
Primary CVSS: v3.1 9.8 CRITICAL from [email protected]
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS: 0.009230000 probability, percentile 0.596880000 (date 2026-10-18)
Problem Types: CWE-306 | CWE-306 Missing Authentication for Critical Function
| Version | Source | Type | Score | Severity | Vector |
|---|---|---|---|---|---|
| 3.1 | [email protected] | Primary | 9.8 | CRITICAL | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| 3.1 | [email protected] | Secondary | 9.4 | CRITICAL | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L |
| 3.1 | CNA | CVSSV3_1 | 9.4 | CRITICAL | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L |
CVSS v3.1 Breakdown
Attack Vector
NetworkAttack Complexity
LowPrivileges Required
NoneUser Interaction
NoneScope
UnchangedConfidentiality
HighIntegrity
HighAvailability
HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD Known Affected Configurations (CPE 2.3)
| Type | Vendor | Product | Version | Update | Edition | Language |
|---|---|---|---|---|---|---|
| Application | Cisco | Unified Contact Center Express | All | All | All | All |
| Application | Cisco | Unified Contact Center Express | 15.0 | All | All | All |
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | Cisco | Cisco Unified Contact Center Express | affected 10.5(1)SU1 | Not specified |
| CNA | Cisco | Cisco Unified Contact Center Express | affected 10.6(1) | Not specified |
| CNA | Cisco | Cisco Unified Contact Center Express | affected 11.6(1) | Not specified |
| CNA | Cisco | Cisco Unified Contact Center Express | affected 10.6(1)SU1 | Not specified |
| CNA | Cisco | Cisco Unified Contact Center Express | affected 10.6(1)SU3 | Not specified |
| CNA | Cisco | Cisco Unified Contact Center Express | affected 11.6(2) | Not specified |
| CNA | Cisco | Cisco Unified Contact Center Express | affected 12.0(1) | Not specified |
| CNA | Cisco | Cisco Unified Contact Center Express | affected 11.0(1)SU1 | Not specified |
| CNA | Cisco | Cisco Unified Contact Center Express | affected 11.5(1)SU1 | Not specified |
| CNA | Cisco | Cisco Unified Contact Center Express | affected 10.5(1) | Not specified |
| CNA | Cisco | Cisco Unified Contact Center Express | affected 12.5(1) | Not specified |
| CNA | Cisco | Cisco Unified Contact Center Express | affected 12.5(1)SU1 | Not specified |
| CNA | Cisco | Cisco Unified Contact Center Express | affected 12.5(1)SU2 | Not specified |
| CNA | Cisco | Cisco Unified Contact Center Express | affected 12.5(1)SU3 | Not specified |
| CNA | Cisco | Cisco Unified Contact Center Express | affected 12.5(1)_SU03_ES01 | Not specified |
| CNA | Cisco | Cisco Unified Contact Center Express | affected 12.5(1)_SU03_ES02 | Not specified |
| CNA | Cisco | Cisco Unified Contact Center Express | affected 12.5(1)_SU02_ES03 | Not specified |
| CNA | Cisco | Cisco Unified Contact Center Express | affected 12.5(1)_SU02_ES04 | Not specified |
| CNA | Cisco | Cisco Unified Contact Center Express | affected 12.5(1)_SU02_ES02 | Not specified |
| CNA | Cisco | Cisco Unified Contact Center Express | affected 12.5(1)_SU01_ES02 | Not specified |
| CNA | Cisco | Cisco Unified Contact Center Express | affected 12.5(1)_SU01_ES03 | Not specified |
| CNA | Cisco | Cisco Unified Contact Center Express | affected 12.5(1)_SU02_ES01 | Not specified |
| CNA | Cisco | Cisco Unified Contact Center Express | affected 11.6(2)ES07 | Not specified |
| CNA | Cisco | Cisco Unified Contact Center Express | affected 11.6(2)ES08 | Not specified |
| CNA | Cisco | Cisco Unified Contact Center Express | affected 12.5(1)_SU01_ES01 | Not specified |
| CNA | Cisco | Cisco Unified Contact Center Express | affected 12.0(1)ES04 | Not specified |
| CNA | Cisco | Cisco Unified Contact Center Express | affected 12.5(1)ES02 | Not specified |
| CNA | Cisco | Cisco Unified Contact Center Express | affected 12.5(1)ES03 | Not specified |
| CNA | Cisco | Cisco Unified Contact Center Express | affected 11.6(2)ES06 | Not specified |
| CNA | Cisco | Cisco Unified Contact Center Express | affected 12.5(1)ES01 | Not specified |
| CNA | Cisco | Cisco Unified Contact Center Express | affected 12.0(1)ES03 | Not specified |
| CNA | Cisco | Cisco Unified Contact Center Express | affected 12.0(1)ES01 | Not specified |
| CNA | Cisco | Cisco Unified Contact Center Express | affected 11.6(2)ES05 | Not specified |
| CNA | Cisco | Cisco Unified Contact Center Express | affected 12.0(1)ES02 | Not specified |
| CNA | Cisco | Cisco Unified Contact Center Express | affected 11.6(2)ES04 | Not specified |
| CNA | Cisco | Cisco Unified Contact Center Express | affected 11.6(2)ES03 | Not specified |
| CNA | Cisco | Cisco Unified Contact Center Express | affected 11.6(2)ES02 | Not specified |
| CNA | Cisco | Cisco Unified Contact Center Express | affected 11.6(2)ES01 | Not specified |
| CNA | Cisco | Cisco Unified Contact Center Express | affected 10.6(1)SU3ES03 | Not specified |
| CNA | Cisco | Cisco Unified Contact Center Express | affected 11.0(1)SU1ES03 | Not specified |
| CNA | Cisco | Cisco Unified Contact Center Express | affected 10.6(1)SU3ES01 | Not specified |
| CNA | Cisco | Cisco Unified Contact Center Express | affected 10.5(1)SU1ES10 | Not specified |
| CNA | Cisco | Cisco Unified Contact Center Express | affected 11.5(1)SU1ES03 | Not specified |
| CNA | Cisco | Cisco Unified Contact Center Express | affected 11.6(1)ES02 | Not specified |
| CNA | Cisco | Cisco Unified Contact Center Express | affected 11.5(1)ES01 | Not specified |
| CNA | Cisco | Cisco Unified Contact Center Express | affected 10.6(1)SU2 | Not specified |
| CNA | Cisco | Cisco Unified Contact Center Express | affected 10.6(1)SU2ES04 | Not specified |
| CNA | Cisco | Cisco Unified Contact Center Express | affected 11.6(1)ES01 | Not specified |
| CNA | Cisco | Cisco Unified Contact Center Express | affected 10.6(1)SU3ES02 | Not specified |
| CNA | Cisco | Cisco Unified Contact Center Express | affected 11.5(1)SU1ES02 | Not specified |
| CNA | Cisco | Cisco Unified Contact Center Express | affected 11.5(1)SU1ES01 | Not specified |
| CNA | Cisco | Cisco Unified Contact Center Express | affected 11.0(1)SU1ES02 | Not specified |
| CNA | Cisco | Cisco Unified Contact Center Express | affected 12.5(1)_SU03_ES03 | Not specified |
| CNA | Cisco | Cisco Unified Contact Center Express | affected 12.5(1)_SU03_ES04 | Not specified |
| CNA | Cisco | Cisco Unified Contact Center Express | affected 12.5(1)_SU03_ES05 | Not specified |
| CNA | Cisco | Cisco Unified Contact Center Express | affected UCCX 15.0.1 | Not specified |
| CNA | Cisco | Cisco Unified Contact Center Express | affected 12.5(1)_SU03_ES06 | Not specified |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-cc-una... | [email protected] | sec.cloudapps.cisco.com | Vendor Advisory |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
No vendor comments have been submitted for this CVE.
Additional Advisory Data
Exploits
CNA: The Cisco PSIRT is not aware of any public announcements or malicious use of the vulnerabilities that are described in this advisory.
There are currently no legacy QID mappings associated with this CVE.