CVE-2025-20123 Cisco Crosswork Network Controller Stored Cross-Site Scripting Vulnerability

Medium 4.8 Published Updated

An authenticated attacker can inject malicious scripts into the Cisco Crosswork Network Controller interface, allowing arbitrary code execution or data theft.

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-2025-20123?

CVE-2025-20123 is a medium-severity cross-site scripting vulnerability in Cisco Crosswork Network Change Automation, published on 8 Jan 2025. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.

Official description

Multiple vulnerabilities in the web-based management interface of Cisco Crosswork Network Controller could allow an authenticated, remote attacker to conduct cross-site scripting (XSS) attacks against users of the interface of an affected system. These vulnerabilities exist because the web-based management interface does not properly validate user-supplied input. An attacker could exploit these vulnerabilities by inserting malicious data into specific data fields 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. To exploit these vulnerabilities, the attacker must have valid administrative credentials. Cisco has released software updates that address these vulnerabilities. There are no workarounds that address these vulnerabilities.

Weakness: CWE-79

Which versions are affected by CVE-2025-20123?

It affects 1 product.

Products include Cisco Crosswork Network Controller.

How do I fix CVE-2025-20123?

No fix has been published for CVE-2025-20123 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-2025-20123 being exploited?

There is no known exploitation of CVE-2025-20123 in the wild and no public exploit code.

Sources

Also known as GHSA-56h9-9qx5-f7gf.

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