CVE-2025-20353 Cisco Catalyst Center Cross-Site Scripting Vulnerability
An unauthenticated attacker can execute arbitrary scripts or access sensitive data by tricking a user into clicking a crafted link in the Cisco Catalyst Center interface.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2025-20353?
CVE-2025-20353 is a medium-severity cross-site scripting vulnerability in Cisco Digital Network Architecture Center (DNA Center), published on 13 Nov 2025. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
A vulnerability in the web-based management interface of Cisco Catalyst Center could allow an unauthenticated, remote attacker to conduct a cross-site scripting (XSS) attack against a user of the interface of an affected device. This vulnerability is due to insufficient validation of user input. An attacker could exploit this vulnerability by persuading a user of the web-based management interface to click a crafted link. 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-2025-20353?
It affects 1 product.
Products include Cisco Catalyst Center.
How do I fix CVE-2025-20353?
No fix has been published for CVE-2025-20353 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-2025-20353 being exploited?
There is no known exploitation of CVE-2025-20353 in the wild and no public exploit code.
Other vulnerabilities in Cisco Digital Network Architecture Center (DNA Center)
- CVE-2021-1264 Cisco DNA Center Command Runner Command Injection Vulnerability
- CVE-2023-20055 Cisco DNA Center Privilege Escalation Vulnerability
- CVE-2021-1265 Cisco DNA Center Information Disclosure Vulnerability
- CVE-2026-20191 Cisco Catalyst Center Arbitrary File Read Vulnerability
- CVE-2024-20350 Cisco Catalyst Center Static SSH Host Key Vulnerability
Sources
Also known as GHSA-cvh7-25fm-227j.