CVE-2026-20091— Cisco UCS Manager and FXOS Software Stored Cross-Site Scripting Vulnerability
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I. Basic Information for CVE-2026-20091
Vulnerability Information
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Vulnerability Title
Cisco UCS Manager and FXOS Software Stored Cross-Site Scripting Vulnerability
Source: NVD (National Vulnerability Database)
Vulnerability Description
A vulnerability in the web-based management interface of Cisco FXOS Software and Cisco UCS Manager Software could allow an authenticated, remote attacker to conduct a stored cross-site scripting (XSS) attack against a user of the interface. This vulnerability is due to insufficient validation of user-supplied input by the web-based management interface of an affected system. An attacker could exploit this vulnerability by injecting malicious data into specific pages of the interface. A successful exploit could allow the attacker to execute arbitrary script code in the context of the affected interface or access sensitive, browser-based information. To exploit this vulnerability, the attacker must have valid credentials for a user account with the role of Administrator or AAA Administrator.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
在Web页面生成时对输入的转义处理不恰当(跨站脚本)
Source: NVD (National Vulnerability Database)
Vulnerability Title
Cisco FXOS Software和Cisco UCS Manager Software 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Cisco FXOS Software和Cisco UCS Manager Software都是美国思科（Cisco）公司的产品。Cisco FXOS Software是一套运行在思科安全设备中的防火墙软件。Cisco UCS Manager Software是一款设备管理软件。 Cisco FXOS Software和Cisco UCS Manager Software存在跨站脚本漏洞，该漏洞源于基于Web的管理界面输入验证不足，可能导致存储型跨站脚本攻击。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Cisco | Cisco Firepower Extensible Operating System (FXOS) | 2.14.1.131 | - | |
| Cisco | Cisco Secure Firewall Adaptive Security Appliance (ASA) Software | 9.12.2 | - | |
| Cisco | Cisco Unified Computing System (Managed) | 4.0(4h) | - |
II. Public POCs for CVE-2026-20091
| # | POC Description | Source Link | Shenlong Link |
|---|
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Same Patch Batch · Cisco · 2026-02-25 · 15 CVEs total
| CVE-2026-20127 | 10.0 CRITICAL | Cisco Catalyst SD-WAN Controller Authentication Bypass Vulnerability |
| CVE-2026-20129 | 9.8 CRITICAL | Cisco Catayst SD-WAN Authentication Bypass Vulnerability |
| CVE-2026-20126 | 8.8 HIGH | Cisco Catalyst SD-WAN Manager Privilege Escalation Vulnerability |
| CVE-2026-20048 | 7.7 HIGH | Cisco NX-OS Software SNMP Denial of Service Vulnerability |
| CVE-2026-20128 | 7.5 HIGH | Cisco Catalyst SD-WAN Manager Information Disclosure Vulnerability |
| CVE-2026-20033 | 7.4 HIGH | Cisco NX-OS Software Denial of Service Vulnerability |
| CVE-2026-20010 | 7.4 HIGH | Cisco Nexus 3000 and 9000 Series Switches Link Layer Discovery Protocol Denial of Service |
| CVE-2026-20051 | 7.4 HIGH | Cisco Nexus 3600-R and 9500-R Series Switching Platforms Layer 2 Loop Denial of Service Vu |
| CVE-2026-20099 | 6.7 MEDIUM | Cisco UCS Manager and FXOS Software Command Injection Vulnerability |
| CVE-2026-20036 | 6.5 MEDIUM | Cisco UCS Manager Software Command Injection Vulnerability |
| CVE-2026-20133 | 6.5 MEDIUM | Cisco Catalyst SD-WAN Manager（Cisco SD-WAN vManage） 信息泄露漏洞 |
| CVE-2026-20107 | 5.5 MEDIUM | Cisco Application Policy Infrastructure Controller Denial of Service Vulnerability |
| CVE-2026-20122 | 5.4 MEDIUM | Cisco Catalyst SD-WAN Manager Arbitrary File Overwrite Vulnerability |
| CVE-2026-20037 | 4.4 MEDIUM | Cisco UCS Manager File Write Vulnerability |
IV. Related Vulnerabilities
Same product: Cisco Firepower Extensible Operating System (FXOS)
- CVE-2026-20099
Cisco UCS Manager and FXOS Software Command Injection Vulner - CVE-2022-20865
Cisco FXOS Software Command Injection Vulnerability - CVE-2020-3455
Cisco FXOS Software for Firepower 4100/9300 Series Appliance - CVE-2020-3459
Cisco FXOS Software for Firepower 4100/9300 Series Command I - CVE-2020-3545
Cisco FXOS Software Buffer Overflow Vulnerability
Same vendor: Cisco
- CVE-2026-20219
Cisco Slido 安全漏洞 - CVE-2026-20034
Cisco Unity Connection Remote Code Execution Vulnerability - CVE-2026-20035
Cisco Unity Connection Server-Side Request Forgery Vulnerabi - CVE-2026-20167
Cisco IoT Field Network Director Remote Device Denial of Ser - CVE-2026-20169
Cisco IoT Field Network Director Command Injection Vulnerabi
Same weakness: CWE-79
- CVE-2026-8262
Devs Palace ERP Online chart-save cross site scripting - CVE-2026-8256
Devs Palace ERP Online mr-save cross site scripting - CVE-2026-8255
Devs Palace ERP Online add_new_customer cross site scripting - CVE-2026-8254
Devs Palace ERP Online sales_save cross site scripting - CVE-2026-8253
Devs Palace ERP Online purchase_save cross site scripting
V. Comments for CVE-2026-20091
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