---
id: CVE-2026-20111
title: >-
  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.…
summary: >-
  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.…
severity: medium
cvss: 4.8
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N'
cwe:
  - CWE-798
  - CWE-79
vendor: cisco
product: prime_infrastructure
affected:
  - prime_infrastructure < 3.10.6
  - prime_infrastructure = 3.10.6
patched:
  - prime_infrastructure 3.10.6
published: '2026-02-04'
updated: '2026-06-29'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-20111'
references:
  - url: >-
      https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-pi-xss-bYeVKCD
    label: psirt@cisco.com
tags:
  - nvd
epss: 0.00186
epssPercentile: 0.07227
ingestedAt: '2026-06-29T21:48:47.229Z'
---

## Overview

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.

## Affected

- `prime_infrastructure < 3.10.6`
- `prime_infrastructure = 3.10.6`

## Remediation

Upgrade past the affected range:

- `prime_infrastructure 3.10.6`