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CVE-2026-27016

MEDIUM

5.4

Description

LibreNMS is an auto-discovering PHP/MySQL/SNMP based network monitoring tool. Versions 24.10.0 through 26.1.1 are vulnerable to Stored XSS via the unit parameter in Custom OID. The Custom OID functionality lacks strip_tags() sanitization while other fields (name, oid, datatype) are sanitized. The unsanitized value is stored in the database and rendered without HTML escaping. This issue is fixed in version 26.2.0.

Details CVE

Score CVSS v3.15.4

SeveriteMEDIUM

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

Vecteur d'attaqueNETWORK

ComplexiteLOW

Privileges requisLOW

Interaction utilisateurREQUIRED

Publie2/20/2026

Derniere modification2/20/2026

Sourcenvd

Observations honeypot0

Produits affectes

librenms:librenms

Faiblesses (CWE)

CWE-79CWE-116CWE-79

References

https://github.com/librenms/librenms/commit/3bea263e02441690c01dea7fa3fe6ffec94af335(security-advisories@github.com)

https://github.com/librenms/librenms/pull/19040(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-fqx6-693c-f55g(security-advisories@github.com)

Correlations IOC

Aucune correlation enregistree

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