XSS in Cisco Unified Contact Center Express

CVE-2021-1254

Multiple vulnerabilities in the web-based management interface of Cisco Finesse could allow an authenticated, remote attacker to conduct a cross-site scripting (XSS) attack against a user of the interface. These vulnerabilities are due to insufficient validation of user-supplied input by the web-based management interface of the affected software. An attacker could exploit these vulnerabilities by injecting malicious code into the web-based management interface and persuading a user to click a malicious 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. An attacker needs valid administrator credentials to inject the malicious script code.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.007 (51.6th 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-2021-1254?
CVE-2021-1254 is a medium-severity vulnerability in Cisco Unified Contact Center Express, classified under Cross-site Scripting. CVSS score: 4.8/10. Published 2021-05-22.
How severe is CVE-2021-1254?
Medium severity. CVSS v3 base score is 4.8 out of 10.