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CVE-2019-1792: Cisco Umbrella Cross-Site Scripting Vulnerability

• Severity: medium (CVSS 6.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2019-04-18 · updated 2026-06-17
• Weakness: CWE-79

Description

A vulnerability in the URL block page of Cisco Umbrella could allow an unauthenticated, remote attacker to conduct a cross-site scripting (XSS) attack against a user in a network protected by Umbrella. The vulnerability is due to insufficient validation of input parameters passed to that page. An attacker could exploit this vulnerability by persuading a user of the interface to click a maliciously crafted link. A successful exploit could allow the attacker to execute arbitrary script code in the context of the interface or access sensitive browser-based information. This vulnerability has been fixed in the current version of Cisco Umbrella. Cisco Umbrella is a cloud service.

Affected products

• Cisco Umbrella Insights Virtual Appliance: all versions

References

• http://www.securityfocus.com/bid/108014
• https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190417-umbrella-xss
• http://www.securityfocus.com/bid/108014
• https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190417-umbrella-xss

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