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CVE-2026-26989

MEDIUM

4.3

Description

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.

Details CVE

Score CVSS v3.14.3

SeveriteMEDIUM

Vecteur CVSSCVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:L/I:L/A:L

Vecteur d'attaqueNETWORK

ComplexiteLOW

Privileges requisHIGH

Interaction utilisateurREQUIRED

Publie2/20/2026

Derniere modification2/20/2026

Sourcenvd

Observations honeypot0

Produits affectes

librenms:librenms

Faiblesses (CWE)

CWE-79

References

https://github.com/librenms/librenms/commit/087608cf9f851189847cb8e8e5ad002e59170c58(security-advisories@github.com)

https://github.com/librenms/librenms/pull/19039(security-advisories@github.com)

https://github.com/librenms/librenms/releases/tag/26.2.0(security-advisories@github.com)

https://github.com/librenms/librenms/security/advisories/GHSA-6xmx-xr9p-58p7(security-advisories@github.com)

Correlations IOC

Aucune correlation enregistree

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