CVE-2026-20087: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in Cisco Cisco Enterprise NFV Infrastructure Software
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.
AI Analysis
Technical Summary
This vulnerability in Cisco Enterprise NFV Infrastructure Software's web management interface permits stored XSS attacks by authenticated administrators due to improper input validation. An attacker with administrative access can inject malicious scripts that execute in the context of other users' browsers when they interact with crafted links. This could lead to unauthorized script execution or exposure of sensitive information within the browser session. The issue affects numerous versions of the software as listed. The CVSS 3.1 vector indicates network attack vector, low attack complexity, high privileges required, user interaction required, scope changed, and low impact on confidentiality and integrity, with no impact on availability.
Potential Impact
Successful exploitation allows an authenticated attacker with administrative privileges to execute arbitrary scripts in the browsers of other users of the management interface. This can lead to unauthorized access to sensitive browser-based information or actions performed on behalf of the victim user within the interface. The impact is limited to confidentiality and integrity with no direct impact on availability. The vulnerability requires user interaction and administrative privileges, reducing the likelihood of exploitation by lower-privileged attackers.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since no patch or official fix information is provided, users should monitor Cisco's advisories for updates. Until a fix is available, limit administrative access to trusted personnel and exercise caution when clicking links within the management interface. Employing web application firewalls or input validation controls may help reduce risk but are not substitutes for an official fix.
CVE-2026-20087: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in Cisco Cisco Enterprise NFV Infrastructure Software
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.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability in Cisco Enterprise NFV Infrastructure Software's web management interface permits stored XSS attacks by authenticated administrators due to improper input validation. An attacker with administrative access can inject malicious scripts that execute in the context of other users' browsers when they interact with crafted links. This could lead to unauthorized script execution or exposure of sensitive information within the browser session. The issue affects numerous versions of the software as listed. The CVSS 3.1 vector indicates network attack vector, low attack complexity, high privileges required, user interaction required, scope changed, and low impact on confidentiality and integrity, with no impact on availability.
Potential Impact
Successful exploitation allows an authenticated attacker with administrative privileges to execute arbitrary scripts in the browsers of other users of the management interface. This can lead to unauthorized access to sensitive browser-based information or actions performed on behalf of the victim user within the interface. The impact is limited to confidentiality and integrity with no direct impact on availability. The vulnerability requires user interaction and administrative privileges, reducing the likelihood of exploitation by lower-privileged attackers.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since no patch or official fix information is provided, users should monitor Cisco's advisories for updates. Until a fix is available, limit administrative access to trusted personnel and exercise caution when clicking links within the management interface. Employing web application firewalls or input validation controls may help reduce risk but are not substitutes for an official fix.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- cisco
- Date Reserved
- 2025-10-08T11:59:15.367Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 69cd5f13e6bfc5ba1de6e549
Added to database: 4/1/2026, 6:08:19 PM
Last enriched: 4/22/2026, 10:34:47 PM
Last updated: 5/21/2026, 6:33:53 PM
Views: 48
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
External Links
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.