CVE-2026-20089 - Vulnerability Details

- Cisco Integrated Management Controller Cross-Site Scripting Vulnerability

Description

A vulnerability in the web-based management interface of Cisco IMC could allow an authenticated, remote attacker with administrative privileges to conduct a stored 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.

Published: 2026-04-01

Score: 4.8 Medium

EPSS: < 1% Very Low

KEV: No

Impact:

Action:

Analysis

Impact

This vulnerability arises from insufficient input validation in the web interface of Cisco’s Integrated Management Controller (IMC). An authenticated attacker with administrative privileges can embed malicious script into the UI, which is stored and executed when a user clicks a crafted link. The stored XSS can run arbitrary JavaScript in the victim’s browser, enabling the attacker to exfiltrate credentials, manipulate the interface, or perform additional actions on behalf of the user.

Affected Systems

Affects Cisco Enterprise NFV Infrastructure Software, Cisco Unified Computing System (Standalone), and Cisco Unified Computing System E-Series Software (UCSE). Exact product versions impacted are not disclosed in the advisory.

Risk and Exploitability

With a CVSS score of 4.8, the vulnerability is of moderate severity. The EPSS score is not available, and it is not listed in CISA’s KEV catalog, indicating no confirmed public exploitation. Exploitation requires an authenticated admin account and the victim’s interaction with a crafted link, but access controls and monitoring can mitigate the risk.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

Cisco

Cisco Enterprise NFV Infrastructure Software

unknown

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

Cisco

Cisco Unified Computing System (Standalone)

unknown

Version	Status	Constraints
`4.0(2g)`	affected	—
`3.1(2i)`	affected	—
`3.1(1d)`	affected	—
`4.0(4i)`	affected	—
`4.1(1c)`	affected	—
`4.0(2c)`	affected	—
`4.0(1e)`	affected	—
`4.0(2h)`	affected	—
`4.0(4h)`	affected	—
`4.0(1h)`	affected	—
`4.0(2l)`	affected	—
`3.1(3g)`	affected	—
`4.0(1.240)`	affected	—
`4.0(2f)`	affected	—
`4.0(1g)`	affected	—
`4.0(2i)`	affected	—
`3.1(3i)`	affected	—
`4.0(4d)`	affected	—
`4.1(1d)`	affected	—
`3.1(3c)`	affected	—
`4.0(4k)`	affected	—
`3.1(2d)`	affected	—
`3.1(3a)`	affected	—
`3.1(3j)`	affected	—
`4.0(2d)`	affected	—
`4.1(1f)`	affected	—
`4.0(4j)`	affected	—
`4.0(2m)`	affected	—
`4.0(2k)`	affected	—
`4.0(1c)`	affected	—
`4.0(4f)`	affected	—
`4.0(4c)`	affected	—
`3.1(3d)`	affected	—
`3.1(2g)`	affected	—
`3.1(2c)`	affected	—
`4.0(1d)`	affected	—
`3.1(2e)`	affected	—
`4.0(1a)`	affected	—
`4.0(1b)`	affected	—
`3.1(3b)`	affected	—
`4.0(4b)`	affected	—
`3.1(2b)`	affected	—
`4.0(4e)`	affected	—
`3.1(3h)`	affected	—
`4.0(4l)`	affected	—
`4.1(1g)`	affected	—
`4.1(2a)`	affected	—
`4.0(2n)`	affected	—
`4.1(1h)`	affected	—
`3.1(3k)`	affected	—
`4.1(2b)`	affected	—
`4.0(2o)`	affected	—
`4.0(4m)`	affected	—
`4.1(2d)`	affected	—
`4.1(3b)`	affected	—
`4.0(2p)`	affected	—
`4.1(2e)`	affected	—
`4.1(2f)`	affected	—
`4.0(4n)`	affected	—
`4.0(2q)`	affected	—
`4.1(3c)`	affected	—
`4.0(2r)`	affected	—
`4.1(3d)`	affected	—
`4.1(2g)`	affected	—
`4.1(2h)`	affected	—
`4.1(3g)`	affected	—
`4.1(3f)`	affected	—
`4.1(2j)`	affected	—
`4.1(2k)`	affected	—
`4.1(3h)`	affected	—
`4.2(2a)`	affected	—
`4.1(3i)`	affected	—
`4.2(2f)`	affected	—
`4.2(2g)`	affected	—
`4.2(3b)`	affected	—
`4.1(3l)`	affected	—
`4.2(3d)`	affected	—
`4.3(1.230097)`	affected	—
`4.2(1e)`	affected	—
`4.2(1b)`	affected	—
`4.2(1j)`	affected	—
`4.2(1i)`	affected	—
`4.2(1f)`	affected	—
`4.2(1a)`	affected	—
`4.2(1c)`	affected	—
`4.2(1g)`	affected	—
`4.3(1.230124)`	affected	—
`4.1(2l)`	affected	—
`4.2(3e)`	affected	—
`4.3(1.230138)`	affected	—
`4.2(3g)`	affected	—
`4.3(2.230207)`	affected	—
`4.2(3h)`	affected	—
`4.2(3i)`	affected	—
`4.3(2.230270)`	affected	—
`4.1(3m)`	affected	—
`4.1(2m)`	affected	—
`4.3(2.240002)`	affected	—
`4.3(3.240022)`	affected	—
`4.2(3j)`	affected	—
`4.1(3n)`	affected	—
`4.3(2.240009)`	affected	—
`4.3(3.240041)`	affected	—
`4.2(3k)`	affected	—
`4.3(3.240043)`	affected	—
`4.3(4.240142)`	affected	—
`4.3(2.240037)`	affected	—
`4.3(2.240053)`	affected	—
`4.3(4.240152)`	affected	—
`4.2(3l)`	affected	—
`4.3(2.240077)`	affected	—
`4.3(4.242028)`	affected	—
`4.3(4.241063)`	affected	—
`4.3(4.242038)`	affected	—
`4.2(3m)`	affected	—
`4.3(2.240090)`	affected	—
`4.3(5.240021)`	affected	—
`4.3(2.240107)`	affected	—
`4.3(4.242066)`	affected	—
`4.2(3n)`	affected	—
`4.3(5.250001)`	affected	—
`4.2(3o)`	affected	—
`4.3(2.250016)`	affected	—
`4.3(2.250021)`	affected	—
`4.3(5.250030)`	affected	—
`4.3(2.250022)`	affected	—
`4.3(6.250039)`	affected	—
`4.3(6.250040)`	affected	—
`4.3(5.250033)`	affected	—
`4.3(6.250044)`	affected	—
`4.3(6.250053)`	affected	—
`4.3(2.250037)`	affected	—
`4.3(2.250045)`	affected	—
`4.3(4.252001)`	affected	—
`4.3(4.252002)`	affected	—
`6.0(1.250127)`	affected	—
`4.2(3p)`	affected	—
`6.0(1.250131)`	affected	—
`4.3(6.250101)`	affected	—
`6.0(1.250174)`	affected	—
`4.3(6.250117)`	affected	—
`4.3(5.250043)`	affected	—
`4.3(5.250045)`	affected	—
`4.3(6.250060)`	affected	—
`6.0(1.250130)`	affected	—
`4.3(4.241014)`	affected	—
`4.3(2.250063)`	affected	—
`6.0(1.250192)`	affected	—
`4.3(6.260003)`	affected	—
`6.0(1.250194)`	affected	—

Cisco

Cisco Unified Computing System E-Series Software (UCSE)

unknown

Version	Status	Constraints
`3.2.7`	affected	—
`3.2.6`	affected	—
`3.2.4`	affected	—
`3.2.10`	affected	—
`3.2.2`	affected	—
`3.2.3`	affected	—
`2.4.0`	affected	—
`3.2.1`	affected	—
`3.2.11.1`	affected	—
`3.2.8`	affected	—
`3.1.1`	affected	—
`3.0.2`	affected	—
`2.1.0`	affected	—
`2.2.2`	affected	—
`3.1.2`	affected	—
`3.0.1`	affected	—
`2.3.2`	affected	—
`2.3.5`	affected	—
`2.2.1`	affected	—
`3.1.4`	affected	—
`2.4.1`	affected	—
`2.3.1`	affected	—
`3.1.3`	affected	—
`2.3.3`	affected	—
`2.4.2`	affected	—
`3.1.5`	affected	—
`3.1.0`	affected	—
`2.0.0`	affected	—
`3.2.11.3`	affected	—
`3.2.11.5`	affected	—
`3.2.12.2`	affected	—
`3.2.13.6`	affected	—
`3.2.14`	affected	—
`4.11.1`	affected	—
`3.2.15`	affected	—
`4.12.1`	affected	—
`3.2.15.3`	affected	—
`4.12.2`	affected	—
`3.2.16.1`	affected	—
`4.00`	affected	—
`4.15.2`	affected	—
`4.02`	affected	—

No data.

Vendor Product Confidence Versions

Cisco

Enterprise Nfv Infrastructure Software

94%

Version	Status	Scheme	Platform
`[3.3.1,4.18.2a]`	affected	generic	—

Cisco

Unified Computing System

100%

Version	Status	Scheme	Platform
`[3.1(1d),6.0(1.250194)]`	affected	generic	—

Cisco

Unified Computing System Software

100%

Version	Status	Scheme	Platform
`[2.0.0,4.15.2]`	affected	generic	—

Found an issue or want to improve our Enrichment? You can suggest it directly by opening an issue on our dedicated GitHub repository .

Remediation

No vendor fix or workaround currently provided.

OpenCVE Recommended Actions

Check the Cisco Security advisory for the latest patch or update that addresses the stored XSS vulnerability in the Integrated Management Controller web interface.
Apply the vendor’s patch or upgrade to a supported software version that includes the fix.
Limit access to the CIMC web UI to authorized administrators and enforce strong authentication mechanisms.
Educate users to be cautious of clicking unexpected links in the CIMC UI, and consider blocking scripts from untrusted sources if feasible.
Monitor CIMC access logs for signs of script injection or unauthorized activity, and respond promptly.

Generated by OpenCVE AI on April 2, 2026 at 02:42 UTC.

Tracking

Sign in to view the affected projects.

Advisories

No advisories yet.

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required High

Scope Changed

Confidentiality Impact Low

Integrity Impact Low

Availability Impact None

User Interaction Required

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00039.

Exploitation none

Automatable no

Technical Impact partial

References

Link	Providers
https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-cimc-xss-A2tkgVAB

History

Fri, 03 Apr 2026 10:15:00 +0000

Type	Values Removed	Values Added
First Time appeared		Cisco Cisco enterprise Nfv Infrastructure Software Cisco unified Computing System Cisco unified Computing System Software
Vendors & Products		Cisco Cisco enterprise Nfv Infrastructure Software Cisco unified Computing System Cisco unified Computing System Software

Wed, 01 Apr 2026 23:45:00 +0000

Type	Values Removed	Values Added
Description		A vulnerability in the web-based management interface of Cisco IMC could allow an authenticated, remote attacker with administrative privileges to conduct a stored 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.
Title		Cisco Integrated Management Controller Cross-Site Scripting Vulnerability
Weaknesses		CWE-79
References		https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-cimc-xss-A2tkgVAB
Metrics		cvssV3_1 `{'score': 4.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N'}` ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

Subscriptions

Cisco Enterprise Nfv Infrastructure Software Unified Computing System Unified Computing System Software

MITRE

Status: PUBLISHED

Assigner: cisco

Published: 2026-04-01T16:34:48.793Z

Updated: 2026-04-22T19:09:56.418Z

Reserved: 2025-10-08T11:59:15.368Z

Link: CVE-2026-20089

Vulnrichment

Updated: 2026-04-01T17:44:56.920Z

NVD

Status : Awaiting Analysis

Published: 2026-04-01T17:28:27.977

Modified: 2026-04-03T16:11:11.357

Link: CVE-2026-20089

Redhat

No data.

OpenCVE Enrichment

Updated: 2026-04-03T08:58:23Z

Weaknesses

CWE-79

Impact

Affected Systems

Risk and Exploitability

Tracking

Attack Vector Network

Attack Complexity Low

Privileges Required High

Scope Changed

Confidentiality Impact Low

Integrity Impact Low

Availability Impact None

User Interaction Required

Exploitation none

Automatable no

Technical Impact partial

Subscriptions

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