Cisco Identity Services Engine Stored Cross-Site Scripting Vulnerability
Key facts
- Attack vector
- Network
- Privileges required
- High
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Cross-site scripting
- Confidentiality · integrity · availability
- Low · Low · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-79.
Summary
A vulnerability in the web-based management interface of Cisco Identity Services Engine (ISE) Software could allow an authenticated, remote attacker to perform a stored cross-site scripting (XSS) attack on an affected device. The vulnerability is due to insufficient input validation by the web-based management interface. An attacker could exploit this vulnerability by providing malicious data to a specific field within 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. Cisco ISE Software releases 2.7.0 and later contains the fix for this vulnerability.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
- Fix · CNA Cisco Identity Services Engine Software (Cisco) Fixed in 2.7.0
Timeline
- 2026-10-02 Threatist record created from CVE-2020-3149
- 2026-10-03 Alias added: GHSA-5p82-phph-79h7
- 2026-11-06 EPSS moved to the 50th–90th percentile
References
More Cisco Identity Services Engine vulnerabilities
- TI-2026-53488 Cisco Identity Services Engine Authentication Bypass Vulnerability KEVCVSS 3.1CRITICAL 10.0
- TI-2025-14632 Cisco ISE API Unauthenticated Remote Code Execution Vulnerability KEVCVSS 3.1CRITICAL 10.0
- TI-2025-14578 Cisco ISE API Unauthenticated Remote Code Execution Vulnerability KEVCVSS 3.1CRITICAL 10.0
- TI-2021-19919 Apache Log4j2 JNDI features do not protect against attacker controlled LDAP and other JNDI related endpoints KEVCVSS 3.1CRITICAL 10.0
- TI-2025-14579 Cisco ISE API Unauthenticated Remote Code Execution Vulnerability CVSS 3.1CRITICAL 10.0
- TI-2022-05522 OS command injection in Cisco Identity Services Engine Software CVSS 3.1HIGH 8.8
Sources
- CVE-2020-3149 · CVE Program
- CVE-2020-3149 · NVD
- FIRST EPSS
- GHSA-5p82-phph-79h7 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences