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CVE-2026-20198: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in Cisco Cisco Enterprise NFV Infrastructure Software

0
Medium
VulnerabilityCVE-2026-20198cvecve-2026-20198
Published: 08/05/2026 (08/05/2026, 16:18:21 UTC)
Source: CVE Database V5
Vendor/Project: Cisco
Product: Cisco Enterprise NFV Infrastructure Software

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.

CVSS v3.1

Score 4.8medium

Attack Vector
Network
Attack Complexity
Low
Privileges Required
High
User Interaction
Required
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
None
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N

Affected software

Cisco

Cisco Enterprise NFV Infrastructure Software

Affected versions
=4.1.1=3.9.1=3.5.2=3.12.2=3.6.2=3.9.2=3.11.3=3.11.1=3.5.1=3.3.1=3.10.2=3.12.1b=3.4.1=3.12.1a=3.6.3=3.8.1=3.11.2=3.12.1=3.12.3=3.10.1=3.6.1=3.10.3=3.7.1=4.1.2=4.2.1=4.2.2=4.4.1=4.4.2=4.5.1=4.4.3=4.6.1=4.7.1=4.6.2-FC2=4.6.2-FC3=4.6.2=4.8.1=4.8.2=4.9.1=4.6.3=4.9.2-FC5=4.9.2=4.10.1=4.9.3=4.11.1=4.9.4=4.12.1=4.6.4=4.12.2=4.13.1=4.9.4-ES8=4.9.5=4.12.3=4.6.5-ES1=4.9.4-ES9=4.14.1=4.6.3-FC4=4.9.4-FC3=4.12.4=4.15.1=4.9.6=4.16.1=4.15.2=4.12.5=4.15.3=4.15.4=4.18.1=4.12.6=4.18.2=4.18.2a=4.15.5=4.12.7=4.12.8

Cisco

Cisco Unified Computing System (Standalone)

Cisco

Cisco Unified Computing System E-Series Software (UCSE)

Affected versions
=3.2.7=3.2.6=3.2.4=3.2.10=3.2.2=3.2.3=3.2.1=3.2.11.1=3.2.8=3.1.1=3.1.2=3.1.4=3.1.3=3.1.5=3.1.0=3.2.11.3=3.2.11.5=3.2.12.2=3.2.13.6=3.2.14=4.11.1=3.2.15=4.12.1=3.2.15.3=4.12.2=3.2.16.1=4.00=4.15.2=4.02=3.2.17.1=4.15.3

AI-Powered Analysis

Machine-generated threat intelligence

AILast updated: 08/05/2026, 17:34:15 UTC

Technical Analysis

This vulnerability arises from improper neutralization of input during web page generation in Cisco Integrated Management Controller (IMC). An authenticated remote attacker can exploit insufficient validation of user input in the web interface to conduct a cross-site scripting (XSS) attack. Successful exploitation requires tricking a user into clicking a crafted link, enabling execution of arbitrary script code in the victim's browser or access to sensitive information. The vulnerability affects multiple specific versions of Cisco Enterprise NFV Infrastructure Software as listed.

Potential Impact

Exploitation of this vulnerability could allow an attacker to execute arbitrary scripts in the context of the targeted user's browser session on the Cisco IMC web interface. This may lead to disclosure of sensitive information accessible through the browser or other actions permitted by the user's privileges. The vulnerability requires the attacker to be authenticated and to convince a user to interact with a malicious link. There is no indication of impact on system availability or integrity beyond the browser context.

Mitigation Recommendations

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or temporary workaround is currently documented. Until a patch is available, users should exercise caution with links received in the management interface context and limit authenticated user access to trusted personnel only.

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Technical Details

Data Version
5.2
Assigner Short Name
cisco
Date Reserved
2025-10-08T11:59:15.397Z
Cvss Version
3.1
State
PUBLISHED

Threat ID: 6a736b5ebf8831d5392da42c

Added to database: 08/05/2026, 16:57:02 UTC

Last enriched: 08/05/2026, 17:34:15 UTC

Last updated: 09/17/2026, 22:01:33 UTC

Views: 23

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