CVE-2021-31274

Published: Sep 8, 2021Modified: Jun 17, 2026

5.4

Vector

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

Exploitability: 2.3 / Impact: 2.7

Source: NVD

Description

In LibreNMS < 21.3.0, a stored XSS vulnerability was identified in the API Access page due to insufficient sanitization of the $api->description variable. As a result, arbitrary Javascript code can get executed.

Affected (1)

Products: Librenms: Librenms

Librenms

1 product

Librenms

Configuration A

1 vulnerable

Vulnerable Software	Affected Versions
Librenms Librenms	Before 21.3.0

Related CWEs

CWE-79

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 (6)

https://community.librenms.org/t/vulnerability-report-cross-site-scripting-xss-in-the-api-access-page/15431

Source: cve@mitre.org

Vendor Advisory

https://github.com/librenms/librenms

Source: cve@mitre.org

ProductThird Party Advisory

https://github.com/librenms/librenms/pull/12739

Source: cve@mitre.org

PatchThird Party Advisory

https://community.librenms.org/t/vulnerability-report-cross-site-scripting-xss-in-the-api-access-page/15431

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

Vendor Advisory

https://github.com/librenms/librenms

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

ProductThird Party Advisory

https://github.com/librenms/librenms/pull/12739

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

PatchThird Party Advisory

Timeline

No history available yet.