CVE-2026-20090 | Cisco Enterprise NFV Infrastructure Software Web-based Management Interface cross site scripting (cisco-sa-cimc-xss-A2tkgVAB)

VDB-354729 · CVE-2026-20090 · GCVE-0-2026-20090 CISCO ENTERPRISE NFV INFRASTRUCTURE SOFTWARE WEB-BASED MANAGEMENT INTERFACE CROSS SITE SCRIPTING HISTORYDIFFRELATEJSONXMLCTI CVSS Meta Temp Score Current Exploit Price (≈) CTI Interest Score 3.5 $0-$5k 1.42 Summaryinfo A vulnerability marked as problematic has been reported in Cisco Enterprise NFV Infrastructure Software, Unified Computing System and Unified Computing System E-Series Software. Affected by this issue is some unknown functionality of the component Web-based Management Interface. Performing a manipulation results in cross site scripting. This vulnerability is cataloged as CVE-2026-20090. It is possible to initiate the attack remotely. There is no exploit available. It is suggested to upgrade the affected component. Detailsinfo A vulnerability, which was classified as problematic, was found in Cisco Enterprise NFV Infrastructure Software, Unified Computing System and Unified Computing System E-Series Software (the affected version is unknown). This affects an unknown code 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. The summary by CVE is: 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 shared at sec.cloudapps.cisco.com. This vulnerability is uniquely identified as CVE-2026-20090 since 10/08/2025. The exploitability is told to be easy. It is possible to initiate the attack remotely. Additional levels of successful authentication are needed for exploitation. It demands that the victim is doing some kind of user interaction. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1059.007 for this issue. Upgrading eliminates this vulnerability. Productinfo Type Virtualization Software Vendor Cisco Name Enterprise NFV Infrastructure Software Unified Computing System Unified Computing System E-Series Software License commercial Website Vendor: https://www.cisco.com/ CPE 2.3info 🔒 🔒 🔒 CPE 2.2info 🔒 🔒 🔒 CVSSv4info VulDB Vector: 🔒 VulDB Reliability: 🔍 CVSSv3info VulDB Meta Base Score: 3.6 VulDB 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): 🔒 CVSSv2info Vector Complexity Authentication Confidentiality Integrity Availability Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock VulDB Base Score: 🔒 VulDB Temp Score: 🔒 VulDB Reliability: 🔍 Exploitinginfo Class: Cross site scripting CWE: CWE-79 / CWE-94 / CWE-74 CAPEC: 🔒 ATT&CK: 🔒 Physical: No Local: No Remote: Yes Availability: 🔒 Status: Not defined Price Prediction: 🔍 Current Price Estimation: 🔒 0-Day Unlock Unlock Unlock Unlock Today Unlock Unlock Unlock Unlock Threat Intelligenceinfo Interest: 🔍 Active Actors: 🔍 Active APT Groups: 🔍 Countermeasuresinfo Recommended: Upgrade Status: 🔍 0-Day Time: 🔒 Timelineinfo 10/08/2025 CVE reserved 04/01/2026 +175 days Advisory disclosed 04/01/2026 +0 days VulDB entry created 04/01/2026 +0 days VulDB entry last update Sourcesinfo Vendor: cisco.com Advisory: cisco-sa-cimc-xss-A2tkgVAB Status: Confirmed CVE: CVE-2026-20090 (🔒) GCVE (CVE): GCVE-0-2026-20090 GCVE (VulDB): GCVE-100-354729 Entryinfo Created: 04/01/2026 19:16 Changes: 04/01/2026 19:16 (64) Complete: 🔍 Cache ID: 99:582:101 Discussion No comments yet. Languages: en. Please log in to comment. ◂ PreviousOverviewNext ▸