CVE-2025-20147 Cisco SD-WAN vManage Stored Cross-Site Scripting Vulnerability

Medium 5.4 Published 7 May 2025 Updated 7 May 2025

An authenticated attacker can inject malicious scripts into the Cisco SD-WAN Manager interface, potentially executing code or hijacking sessions.

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Over the internet
Victim action needed: A user has to click or open something
Fix: None listed

What is CVE-2025-20147?

CVE-2025-20147 is a medium-severity cross-site scripting vulnerability in Cisco Catalyst Sd-Wan Manager, published on 7 May 2025. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

Official description

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 conduct a stored cross-site scripting attack (XSS) on an affected system.  This vulnerability is due to improper sanitization of user input to the web-based management interface. An attacker could exploit this vulnerability by submitting a malicious script through the interface. A successful exploit could allow the attacker to conduct a stored XSS attack on the affected system.

Weakness: CWE-79

Which versions are affected by CVE-2025-20147?

It affects 1 product.

Products include Cisco Catalyst Sd-Wan Manager.

How do I fix CVE-2025-20147?

No fix has been published for CVE-2025-20147 yet. Limit exposure of the affected software until one is available.

Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.

Is CVE-2025-20147 being exploited?

There is no known exploitation of CVE-2025-20147 in the wild and no public exploit code.

All Cisco Catalyst Sd-Wan Manager vulnerabilities

Sources

Also known as GHSA-349j-r63j-r5g7.