What is CVE-2021-1490?

CVE-2021-1490 is a medium-severity vulnerability in Cisco Web Security Appliance (Wsa), classified under Cross-site Scripting. CVSS score: 4.7/10. Published 2021-05-06.

How severe is CVE-2021-1490?

Medium severity. CVSS v3 base score is 4.7 out of 10.

XSS in Cisco Web Security Appliance (Wsa)

CVE-2021-1490

A vulnerability in the web-based management interface of Cisco AsyncOS for Cisco Web Security Appliance (WSA) could allow an unauthenticated, remote attacker to conduct a cross-site scripting (XSS) attack against a user of the interface of an affected device. This vulnerability is due to improper validation of user-supplied input in the web-based management interface. An attacker could exploit this vulnerability by persuading a user to retrieve a crafted file that contains malicious payload and upload it to the affected device. 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.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.007 (49.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.7 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N.

Affected products

Cisco Web Security Appliance (Wsa) — versions n/a
Cisco Web_security_appliance

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

psirt@cisco.com (x_refsource_CISCO, vendor-advisory, Vendor Advisory)

Frequently asked questions

What is CVE-2021-1490?: CVE-2021-1490 is a medium-severity vulnerability in Cisco Web Security Appliance (Wsa), classified under Cross-site Scripting. CVSS score: 4.7/10. Published 2021-05-06.
How severe is CVE-2021-1490?: Medium severity. CVSS v3 base score is 4.7 out of 10.