4.8

CVE-2026-26989

Exploit

LibreNMS has Stored XSS in Alert Rule

LibreNMS is an auto-discovering PHP/MySQL/SNMP based network monitoring tool. Versions 25.12.0 and below are affected by a Stored Cross-Site Scripting (XSS) vulnerability in the Alert Rules workflow. An attacker with administrative privileges can inject malicious scripts that execute in the browser context of any user who accesses the Alert Rules page. This issue has been fixed in version 26.2.0.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Librenms ≫ Librenms Version < 26.2.0
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.24% 0.145
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 4.8 1.7 2.7
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N
security-advisories@github.com 4.3 0.9 3.4
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:L/I:L/A:L
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.

https://github.com/librenms/librenms/releases/tag/26.2.0
Product
Release Notes
https://github.com/librenms/librenms/commit/087608cf9f851189847cb8e8e5ad002e59170c58
Patch
https://github.com/librenms/librenms/pull/19039
Issue Tracking
https://github.com/librenms/librenms/security/advisories/GHSA-6xmx-xr9p-58p7
Third Party Advisory
Exploit