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CVE-2026-27016

LibreNMS has Stored XSS in Custom OID - unit parameter missing strip_tags() PUBLISHED

Description (CNA)

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.

Affected (CNA)

Vendor / productVersions
librenms / librenmsaffected >= 24.10.0, < 26.2.0

CWE

CWE-79, CWE-116

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.