CVE-2026-27016 (GCVE-0-2026-27016)

Vulnerability from cvelistv5 – Published: 2026-02-20 01:34 – Updated: 2026-02-20 15:34
VLAI?
Title
LibreNMS has Stored XSS in Custom OID - unit parameter missing strip_tags()
Summary
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.
Severity ?
5.4 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
CWE
  • CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
  • CWE-116 - Improper Encoding or Escaping of Output
Assigner
References
Impacted products
Vendor Product Version
librenms librenms Affected: >= 24.10.0, < 26.2.0
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