CVE-2021-31930

Published: May 19, 2021Modified: Jun 17, 2026

6.1

Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Exploitability: 2.8 / Impact: 2.7

Source: NVD

Description

Persistent cross-site scripting (XSS) in the web interface of Concerto through 2.3.6 allows an unauthenticated remote attacker to introduce arbitrary JavaScript by injecting an XSS payload into the First Name or Last Name parameter upon registration. When a privileged user attempts to delete the account, the XSS payload will be executed.

Affected (1)

Products: Concerto Signage: Concerto

Concerto Signage

1 product

Configuration A

1 vulnerable

Vulnerable Software	Affected Versions
Concerto Signage Concerto	Up to 2.3.6

Related CWEs

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

References (4)

https://github.com/concerto/concerto/pull/1558

Source: cve@mitre.org

Third Party Advisory

https://github.com/concerto/concerto/security/advisories

Source: cve@mitre.org

Third Party Advisory

https://github.com/concerto/concerto/pull/1558

Source: af854a3a-2127-422b-91ae-364da2661108

Third Party Advisory

https://github.com/concerto/concerto/security/advisories

Source: af854a3a-2127-422b-91ae-364da2661108

Third Party Advisory

Timeline

No history available yet.