CVE-2023-20096 Cisco Unified Contact Center Express Stored Cross-Site Scripting Vulnerability

Medium 5.4 Published 5 Apr 2023 Updated 25 Oct 2024

Authenticated attackers can inject scripts into the Cisco Unified CCX management interface, executing code in other users' browsers.

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-2023-20096?

CVE-2023-20096 is a medium-severity cross-site scripting vulnerability in Cisco Unified Contact Center Express, published on 5 Apr 2023. 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 Unified Contact Center Express (Unified CCX) could allow an authenticated, remote attacker to perform a stored cross-site scripting (XSS) attack. This vulnerability is due to insufficient input validation of user-supplied data. An attacker could exploit this vulnerability by entering crafted text into various input fields within the web-based management interface. A successful exploit could allow the attacker to perform a stored XSS attack, which could allow the execution of scripts within the context of other users of the interface.

Weakness: CWE-79

Which versions are affected by CVE-2023-20096?

It affects 1 product.

Products include Cisco Unified Contact Center Express.

How do I fix CVE-2023-20096?

No fix has been published for CVE-2023-20096 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-2023-20096 being exploited?

There is no known exploitation of CVE-2023-20096 in the wild and no public exploit code.

Sources

Also known as GHSA-4v5g-36mr-fcgx.