TI-2020-02718 Aliases CVE-2020-3156 GHSA-v237-v8f4-gj29

Cisco Identity Services Engine Cross-Site Scripting Vulnerability

LOW 29CWE-79Published 2020-02-19 · Updated 2024-11-15

Key facts

Attack vector: Network
Privileges required: None
User interaction: Required
Attack complexity: Low
Impact type: Cross-site scripting
Confidentiality · integrity · availability: Low · Low · None
Fix status: No fix listed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-79.

Summary

A vulnerability in the logging component of Cisco Identity Services Engine could allow an unauthenticated remote attacker to conduct cross-site scripting attacks. The vulnerability is due to the improper validation of endpoint data stored in logs used by the web-based interface. An attacker could exploit this vulnerability by sending malicious endpoint data to the targeted system. An exploit could allow the attacker to execute arbitrary script code in the context of the affected interface or to access sensitive, browser-based information.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.01056 64th percentileScored 2026-11-07

Fix No fix listed No fixed version in the sources yet

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

Vendor	Product	Affected versions	Fixed in	Status	Source
Cisco	Cisco Identity Services Engine Software	all versions	—	No fix listed	CNA

Cisco Identity Services Engine Software VendorCisco Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 4

CPE	Versions	Role	Vendor
cpe:2.3:a:cisco:identity_services_engine:2.6.0:patch1::::::	2.6.0 patch1	Vulnerable	Cisco
cpe:2.3:a:cisco:identity_services_engine:2.6.0:patch2::::::	2.6.0 patch2	Vulnerable	Cisco
cpe:2.3:a:cisco:identity_services_engine:2.6.0:patch3::::::	2.6.0 patch3	Vulnerable	Cisco
cpe:2.3:a:cisco:identity_services_engine:2.7:::::::*	2.7	Vulnerable	Cisco

cpe:2.3:a:cisco:identity_services_engine:2.6.0:patch1:*:*:*:*:*:* Versions 2.6.0 patch1 Vulnerable ·Cisco
cpe:2.3:a:cisco:identity_services_engine:2.6.0:patch2:*:*:*:*:*:* Versions 2.6.0 patch2 Vulnerable ·Cisco
cpe:2.3:a:cisco:identity_services_engine:2.6.0:patch3:*:*:*:*:*:* Versions 2.6.0 patch3 Vulnerable ·Cisco
cpe:2.3:a:cisco:identity_services_engine:2.7:*:*:*:*:*:*:* Versions 2.7 Vulnerable ·Cisco

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2020-3156
2026-10-03 Alias added: GHSA-v237-v8f4-gj29

References

Advisory 1

20200219 Cisco Identity Services Engine Cross-Site Scripting Vulnerability

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

See all 197 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences