Categories
CVE-2026-27016

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

Summary

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

Original description

The description as published by the source.

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.

Source: OSV.dev (Open Source Vulnerabilities) NVD GitHub Advisory OSV

References

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