PT-2021-19231 · Librenms · Librenms

Murrant · Published 2021-09-08 · Updated 2021-09-15 · CVE-2021-31274

Positive Technologies (AI Summary)

CVSS v3.1

5.4

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions LibreNMS versions prior to 21.3.0

Description A stored XSS issue was identified in the API Access page due to insufficient sanitization of the $api->description variable, allowing arbitrary Javascript code to be executed.

Recommendations For versions prior to 21.3.0, update to version 21.3.0 or later to resolve the issue. As a temporary workaround, consider restricting access to the API Access page until the update is applied.

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2021-31274

GHSA-2R2W-JRH2-P4GR

Affected Products

Librenms

References · 7

• https://github.com/librenms/librenms/pull/12739 · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2021-31274 · Security Note
• https://osv.dev/vulnerability/CVE-2021-31274 · Vendor Advisory
• https://osv.dev/vulnerability/GHSA-2r2w-jrh2-p4gr · Vendor Advisory
• https://community.librenms.org/t/vulnerability-report-cross-site-scripting-xss-in-the-api-access-page/15431 · Vendor Advisory
• https://github.com/librenms/librenms · Note
• https://t.me/cibsecurity/28530 · Telegram Post