Cisco Enterprise NFV Infrastructure Software Web-based Management Interface cross site scripting

| CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
|---|---|---|
| 3.5 | $0-$5k | 0.00 |
Summary
A vulnerability categorized as problematic has been discovered in Cisco Enterprise NFV Infrastructure Software, Unified Computing System and Unified Computing System E-Series Software. This impacts an unknown function of the component Web-based Management Interface. The manipulation results in cross site scripting. This vulnerability is identified as CVE-2026-20087. The attack can be executed remotely. There is not any exploit available. It is advisable to upgrade the affected component.
Details
A vulnerability classified as problematic has been found in Cisco Enterprise NFV Infrastructure Software, Unified Computing System and Unified Computing System E-Series Software (affected version unknown). Affected is an unknown functionality of the component Web-based Management Interface. The manipulation with an unknown input leads to a cross site scripting vulnerability. CWE is classifying the issue as CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. This is going to have an impact on integrity. CVE summarizes:
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.
The advisory is available at sec.cloudapps.cisco.com. This vulnerability is traded as CVE-2026-20087 since 10/08/2025. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation needs additional levels of successful authentication. Successful exploitation requires user interaction by the victim. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1059.007 by the MITRE ATT&CK project.
Upgrading eliminates this vulnerability.
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Product
Type
Vendor
Name
- Enterprise NFV Infrastructure Software
- Unified Computing System
- Unified Computing System E-Series Software
License
Website
- Vendor: https://www.cisco.com/
CPE 2.3
CPE 2.2
CVSSv4
VulDB Vector: 🔒VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 3.6VulDB Meta Temp Score: 3.5
VulDB Base Score: 2.4
VulDB Temp Score: 2.3
VulDB Vector: 🔒
VulDB Reliability: 🔍
CNA Base Score: 4.8
CNA Vector (cisco): 🔒
CVSSv2
| AV | AC | Au | C | I | A |
|---|---|---|---|---|---|
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
|---|---|---|---|---|---|
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
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| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍
Exploiting
Class: Cross site scriptingCWE: CWE-79 / CWE-94 / CWE-74
CAPEC: 🔒
ATT&CK: 🔒
Physical: No
Local: No
Remote: Yes
Availability: 🔒
Status: Not defined
EPSS Score: 🔒
EPSS Percentile: 🔒
Price Prediction: 🔍
Current Price Estimation: 🔒
| 0-Day | Unlock | Unlock | Unlock | Unlock |
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Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
0-Day Time: 🔒
Timeline
10/08/2025 CVE reserved04/01/2026 Advisory disclosed
04/01/2026 VulDB entry created
04/01/2026 VulDB entry last update
Sources
Vendor: cisco.comAdvisory: cisco-sa-cimc-xss-A2tkgVAB
Status: Confirmed
CVE: CVE-2026-20087 (🔒)
GCVE (CVE): GCVE-0-2026-20087
GCVE (VulDB): GCVE-100-354726
Entry
Created: 04/01/2026 19:16Changes: 04/01/2026 19:16 (64)
Complete: 🔍
Cache ID: 216::103
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