CVE-2026-20198 Cisco Integrated Management Controller Cross-Site Scripting Vulnerability
An authenticated attacker can execute arbitrary scripts or access sensitive data in a user's browser via a crafted link in the Cisco IMC interface.
- 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-2026-20198?
CVE-2026-20198 is a medium-severity cross-site scripting vulnerability in Cisco Enterprise NFV Infrastructure Software, published on 5 Aug 2026. 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 Integrated Management Controller (IMC) 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 validation of user input. An attacker could exploit this vulnerability by persuading a user of an affected interface to click a crafted link. A successful exploit could allow the attacker to execute arbitrary script code in the browser of the targeted user or access sensitive, browser-based information.
Weakness: CWE-79
Which versions are affected by CVE-2026-20198?
How do I fix CVE-2026-20198?
No fix has been published for CVE-2026-20198 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-2026-20198 being exploited?
There is no known exploitation of CVE-2026-20198 in the wild and no public exploit code.
Sources
Also known as GHSA-pm96-2768-2263.