CVE-2019-1856: Cisco Prime Collaboration Assurance Cross-Site Scripting Vulnerability

Security readout for executives and security teams

Cisco Prime Collaboration Assurance 12.1 has a stored/reflected XSS-style risk in its web management interface. If an attacker controls a device integrated with PCA, crafted device data could run script in a PCA user's browser and expose browser-based sensitive information. Exposure is limited to environments running Cisco Prime Collaboration Assurance 12.1, especially where PCA ingests data from integrated devices that may be attacker-controlled or less trusted. Treat as a moderate-priority management-plane issue. It is not reported as actively exploited, but PCA handles operational visibility, and compromise of an administrator browser session can affect confidentiality and trust in management workflows. Mitigation focus: Inventory Cisco Prime Collaboration Assurance deployments and confirm whether version 12.1 is present.; Review Cisco's advisory for fixed software, configuration guidance, or vendor-supported mitigation.; Restrict PCA management interface access to trusted administrative networks and users..

Prepared

May 25, 2026, 04:22 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.