CVE-2021-34760 Cisco TelePresence Management Suite Stored Cross-Site Scripting Vulnerability

Medium 4.8 Published 21 Oct 2021 Updated 7 Nov 2024

Authenticated attackers can inject malicious scripts into the Cisco TMS web interface, allowing execution of arbitrary code or access to sensitive browser data.

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

What is CVE-2021-34760?

CVE-2021-34760 is a medium-severity cross-site scripting vulnerability in Cisco TelePresence Management Suite (TMS), published on 21 Oct 2021. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.

Official description

A vulnerability in the web-based management interface of Cisco TelePresence Management Suite (TMS) Software could allow an authenticated, remote attacker to conduct a cross-site scripting (XSS) attack against a user of the interface. This vulnerability is due to insufficient input validation by the web-based management interface. An attacker could exploit this vulnerability by inserting malicious data in a specific data field in the interface. 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.

Weakness: CWE-79

Which versions are affected by CVE-2021-34760?

It affects 1 product.

Products include Cisco Telepresence Management Suite.

How do I fix CVE-2021-34760?

No fix has been published for CVE-2021-34760 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-2021-34760 being exploited?

There is no known exploitation of CVE-2021-34760 in the wild and no public exploit code.

Sources

Also known as GHSA-q7jm-4rr7-gcqq.