XSS in Cisco Identity Services Engine Software

CVE-2021-34759

A vulnerability in the web-based management interface of Cisco Identity Services Engine (ISE) Software could allow an authenticated, remote attacker with administrative credentials to conduct a 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 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 interface or access sensitive, browser-based information. To exploit this vulnerability, an attacker would need valid administrative credentials.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.006 (44.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.8 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2021-34759?
CVE-2021-34759 is a medium-severity vulnerability in Cisco Identity Services Engine Software, classified under Cross-site Scripting. CVSS score: 4.8/10. Published 2021-09-02.
How severe is CVE-2021-34759?
Medium severity. CVSS v3 base score is 4.8 out of 10.