CVE-2021-1507 Cisco SD-WAN vManage API Stored Cross-Site Scripting Vulnerability

Medium 6.4 Published 6 May 2021 Updated 8 Nov 2024

Authenticated attackers can inject malicious scripts into the Cisco SD-WAN vManage web interface, potentially executing code or stealing browser data.

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2021-1507?

CVE-2021-1507 is a medium-severity cross-site scripting vulnerability in Cisco SD-WAN vManage, published on 6 May 2021. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

A vulnerability in an API of Cisco SD-WAN vManage Software could allow an authenticated, remote attacker to conduct a stored cross-site scripting (XSS) attack against users of the application web-based interface. This vulnerability exists because the API does not properly validate user-supplied input. An attacker could exploit this vulnerability by sending malicious input to the API. A successful exploit could allow the attacker to execute arbitrary script code in the context of the web-based interface or access sensitive, browser-based information.

Weakness: CWE-79

Which versions are affected by CVE-2021-1507?

It affects 1 product.

Products include Cisco Sd-Wan Vmanage.

How do I fix CVE-2021-1507?

No fix has been published for CVE-2021-1507 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-2021-1507 being exploited?

There is no known exploitation of CVE-2021-1507 in the wild and no public exploit code.

Sources

Also known as GHSA-c27h-mm4h-h764.