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CVE-2026-20047— Cisco Identity Services Engine Cross-Site Scripting Vulnerability

Quick assessment

Affected
Cisco Cisco Identity Services Engine Software
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Cisco Identity Services Engine（Cisco ISE）和Cisco ISE Passive Identity Connector都是美国思科（Cisco）公司的产品。Cisco Identity Services Engine是一款环境感知平台（ISE身份服务引擎）。该平台通过收集网络、用户和设备中的实时信息，制定并实施相应策略来监管网络。Cisco ISE Passive Identity Connector是一个身份服务引擎被动身份连接器。 Cisco Identity S

CVSS 4.8 · Medium EPSS 0.27% · P18
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I. Basic Information for CVE-2026-20047

Vulnerability Information
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Vulnerability Title
Cisco Identity Services Engine Cross-Site Scripting Vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability in the web-based management interface of Cisco Identity Services Engine (ISE) and Cisco ISE Passive Identity Connector (ISE-PIC) could allow an authenticated, remote attacker to conduct cross-site scripting (XSS) attacks 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 code 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 administrative credentials.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
Web页面中脚本相关HTML标签转义处理不恰当(基本跨站脚本)
Source: CVE Program / CVE List V5
Vulnerability Title
Cisco Identity Services Engine和Cisco ISE Passive Identity Connector 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Cisco Identity Services Engine（Cisco ISE）和Cisco ISE Passive Identity Connector都是美国思科（Cisco）公司的产品。Cisco Identity Services Engine是一款环境感知平台（ISE身份服务引擎）。该平台通过收集网络、用户和设备中的实时信息，制定并实施相应策略来监管网络。Cisco ISE Passive Identity Connector是一个身份服务引擎被动身份连接器。 Cisco Identity S
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 Identity Services Engine Software 3.1.0 -

II. Public POCs for CVE-2026-20047

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III. Intelligence Information for CVE-2026-20047

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Same Patch Batch · Cisco · 2026-01-15 · 3 CVEs total

CVE-2026-20076 4.8 MEDIUM Cisco Identity Services Engine Stored Cross-Site Scripting Vulnerability
CVE-2026-20075 4.8 MEDIUM Cisco Evolved Programmable Network Manager and Cisco Prime Infrastructure Stored Cross-Sit

IV. Related Vulnerabilities

Same product: Cisco Identity Services Engine Software
Same vendor: Cisco
Same weakness: CWE-80

V. Comments for CVE-2026-20047

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