A vulnerability in the Administration Web Interface of Cisco Unified Contact Center Express (Unified CCX) could allow an authenticated, remote attacker to upload arbitrary files and execute commands on the underlying operating system. To exploit this vulnerability, an attacker needs valid Administrator credentials. The vulnerability is due to insufficient restrictions for the content uploaded to an affected system. An attacker could exploit this vulnerability by uploading arbitrary files containing operating system commands that will be executed by an affected system. A successful exploit could allow the attacker to execute arbitrary commands with the privileges of the web interface and then elevate their privileges to root.
Conclusion & alert: CVE-2019-1888 is rated Moderate Risk (61.6/100): CVSS High severity, with medium exploitation likelihood (EPSS 3.37%). Core evidence: EPSS rose +2.29% over the last day, indicating growing attacker interest. Mandatory action: Review affected assets and schedule remediation.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).
| # | Date | Old EPSS score | New EPSS score | Delta (New - Old) |
|---|---|---|---|---|
| 1 | 2026-06-15 | 1.08% | 3.37% | +2.29% |
| 2 | 2026-05-18 | 1.46% | 1.08% | -0.38% |
| 3 | 2025-09-25 | — | 1.46% | — |
Full EPSS history (14 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 7.2 | 3.1 | HIGH |
|
1.2 | 5.9 | [email protected] |
| 7.2 | 3.0 | HIGH |
|
1.2 | 5.9 | [email protected] |
| 9.0 | 2.0 | HIGH |
|
8.0 | 10.0 | [email protected] |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| cisco | unified_contact_center_express | 11.6\(1\) | cpe:2.3:a:cisco:unified_contact_center_express:11.6\(1\):*:*:*:*:*:*:* |
| cisco | unified_contact_center_express | 11.6\(2\) | cpe:2.3:a:cisco:unified_contact_center_express:11.6\(2\):*:*:*:*:*:*:* |
| cisco | unified_contact_center_express | 12.0\(1\) | cpe:2.3:a:cisco:unified_contact_center_express:12.0\(1\):*:*:*:*:*:*:* |
| cisco | unified_ip_interactive_voice_response | 11.6\(1\) | cpe:2.3:a:cisco:unified_ip_interactive_voice_response:11.6\(1\):*:*:*:*:*:*:* |
| cisco | unified_ip_interactive_voice_response | 11.6\(2\) | cpe:2.3:a:cisco:unified_ip_interactive_voice_response:11.6\(2\):*:*:*:*:*:*:* |
| URL | Tags |
|---|---|
| https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-uccx-privesc-Zd7bvwyf | Vendor Advisory |