CVE-2026-20309
published 2026-09-16CVE-2026-20309: A vulnerability in the web-based management interface of Cisco Identity Services Engine (ISE) could allow an unauthenticated, remote attacker to conduct a…
PriorityP428medium6.1CVSS 3.1
AVNACLPRNUIRSCCLILAN
EPSS
0.19%
8.5th percentile
A vulnerability in the web-based management interface of Cisco Identity Services Engine (ISE) could allow an unauthenticated, remote attacker to conduct a reflected cross-site scripting (XSS) attack against a user of the interface.
This vulnerability exists because the web-based management interface does not properly validate user-supplied input. An attacker could exploit this vulnerability by persuading a user of the interface to click a crafted link. 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.
Affected
47 ranges· showing 25
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| cisco | cisco_identity_services_engine_software | — | — |
| cisco | cisco_identity_services_engine_software | — | — |
| cisco | cisco_identity_services_engine_software | — | — |
| cisco | cisco_identity_services_engine_software | — | — |
| cisco | cisco_identity_services_engine_software | — | — |
| cisco | cisco_identity_services_engine_software | — | — |
| cisco | cisco_identity_services_engine_software | — | — |
| cisco | cisco_identity_services_engine_software | — | — |
| cisco | cisco_identity_services_engine_software | — | — |
| cisco | cisco_identity_services_engine_software | — | — |
| cisco | cisco_identity_services_engine_software | — | — |
| cisco | cisco_identity_services_engine_software | — | — |
| cisco | cisco_identity_services_engine_software | — | — |
| cisco | cisco_identity_services_engine_software | — | — |
| cisco | cisco_identity_services_engine_software | — | — |
| cisco | cisco_identity_services_engine_software | — | — |
| cisco | cisco_identity_services_engine_software | — | — |
| cisco | cisco_identity_services_engine_software | — | — |
| cisco | cisco_identity_services_engine_software | — | — |
| cisco | cisco_identity_services_engine_software | — | — |
| cisco | cisco_identity_services_engine_software | — | — |
| cisco | cisco_identity_services_engine_software | — | — |
| cisco | cisco_identity_services_engine_software | — | — |
| cisco | cisco_identity_services_engine_software | — | — |
| cisco | cisco_identity_services_engine_software | — | — |
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VulDB
Cisco Identity Services Engine up to 3.5.0 Web-based Management Interface cross site scripting
vuldb·2026-09-16·CVSS 6.1
CVE-2026-20309 [MEDIUM] Cisco Identity Services Engine up to 3.5.0 Web-based Management Interface cross site scripting
A vulnerability has been found in Cisco Identity Services Engine and classified as problematic. Affected by this vulnerability is an unknown functionality of the component Web-based Management Interface. The manipulation leads to cross site scripting.
This vulnerability is documented as CVE-2026-20309. The attack can be initiated remotely. There is not any exploit available.
The affected component should be upgraded.
GHSA
A vulnerability in the web-based management interface of Cisco Identity Services Engine (ISE) could allow an unauthenticated, remote attacker to conduct a reflected cross-site scripting (XSS) attack a
ghsa_unreviewed·2026-09-16
CVE-2026-20309 [MEDIUM] CWE-79 A vulnerability in the web-based management interface of Cisco Identity Services Engine (ISE) could allow an unauthenticated, remote attacker to conduct a reflected cross-site scripting (XSS) attack a
A vulnerability in the web-based management interface of Cisco Identity Services Engine (ISE) could allow an unauthenticated, remote attacker to conduct a reflected cross-site scripting (XSS) attack against a user of the interface.
This vulnerability exists because the web-based management interface does not properly validate user-supplied input. An attacker could exploit this vulnerability by persuading a user of the interface to click a crafted link. 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.
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
2026-09-16
Published