CVE-2019-12705: Cisco Expressway Series and TelePresence Video Communication Server Cross-Site Scripting Vulnerability

Severity: medium (CVSS 6.1 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.8% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2019-10-16 · updated 2026-06-17
Weakness: CWE-79

Description

A vulnerability in the web-based management interface of Cisco Expressway Series and Cisco TelePresence Video Communication Server (VCS) could allow an unauthenticated, remote attacker to conduct a cross-site scripting (XSS) attack against a user of the web-based management interface of an affected system. The vulnerability is due to insufficient validation of user-supplied input by the web-based management interface of the affected system. An attacker could exploit this vulnerability by persuading a user of the interface to click a malicious link. A successful exploit could allow the attacker to execute arbitrary script code in the context of the affected interface or access sensitive browser-based information.

Affected products

Cisco TelePresence Video Communication Server (VCS) Expressway: before x12.5.4 — fixed in x12.5.4

How to fix

Upgrade to a fixed version: Cisco TelePresence Video Communication Server (VCS) Expressway x12.5.4. Check the vendor advisory for mitigations.

References

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