CVE-2026-20111 Cisco Prime Infrastructure Stored Cross-Site Scripting Vulnerability
An authenticated attacker can inject malicious scripts into Cisco Prime Infrastructure, allowing arbitrary code execution or data theft in victim browsers.
- 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-2026-20111?
CVE-2026-20111 is a medium-severity cross-site scripting vulnerability in Cisco Prime Infrastructure, published on 4 Feb 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 Prime Infrastructure could allow an authenticated, remote attacker to conduct a stored cross-site scripting (XSS) attack against users of the interface of an affected system. This vulnerability exists because the web-based management interface does not properly validate user-supplied input. An attacker could exploit this vulnerability by inserting malicious code 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 this vulnerability, an attacker must have valid administrative credentials.
Which versions are affected by CVE-2026-20111?
It affects 1 product.
Products include Cisco Prime Infrastructure.
How do I fix CVE-2026-20111?
No fix has been published for CVE-2026-20111 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-2026-20111 being exploited?
There is no known exploitation of CVE-2026-20111 in the wild and no public exploit code.
Other vulnerabilities in Cisco Prime Infrastructure
Sources
Also known as GHSA-pjx5-3639-8fm2.