CVE-2023-20179: Cisco SD-WAN Vmanage

Medium severity, CVSS 5.4. EPSS: 0.4% chance of exploitation in the next 30 days.

A vulnerability in the web-based management interface of Cisco Catalyst SD-WAN Manager, formerly Cisco SD-WAN vManage, could allow an authenticated, remote attacker to inject HTML content. This vulnerability is due to improper validation of user-supplied data in element fields. An attacker could exploit this vulnerability by submitting malicious content within requests and persuading a user to view a page that contains injected content. A successful exploit could allow the attacker to modify pages within the web-based management interface, possibly leading to further browser-based attacks against users of the application.

Affected products

• Cisco SD-WAN Vmanage: before 20.6.6 (fixed in 20.6.6); from 20.7, before 20.10 (fixed in 20.10)

Published 2023-09-27. Last modified 2026-06-17.