CVE-2024-20540 Cisco Unified Contact Center Management Portal Stored Cross-Site Scripting Vulnerability

Medium 5.4 Published Updated

Authenticated attackers with Supervisor privileges can inject malicious scripts into the Cisco Unified CCMP interface, potentially executing code or stealing data.

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-2024-20540?

CVE-2024-20540 is a medium-severity cross-site scripting vulnerability in Cisco Unified Contact Center Management Portal, published on 6 Nov 2024. 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 Management Portal (Unified CCMP) could allow an authenticated, remote attacker with low privileges to conduct a stored cross-site scripting (XSS) attack against a user of the interface. This vulnerability exists because the web-based management interface does not properly validate user-supplied input. An attacker could exploit this vulnerability by injecting malicious code into a specific page of 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. To exploit this vulnerability, the attacker must have at least a Supervisor role on an affected device.

Weakness: CWE-79

Which versions are affected by CVE-2024-20540?

It affects 1 product.

Products include Cisco Unified Contact Center Management Portal.

How do I fix CVE-2024-20540?

No fix has been published for CVE-2024-20540 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-2024-20540 being exploited?

There is no known exploitation of CVE-2024-20540 in the wild and no public exploit code.

Sources

Also known as GHSA-r6pw-ffg9-984j.

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