VULNERABILITY INTELLIGENCE
CVE-2026-84189
CVSS score8.1 HIGH
EPSS probability0.38%
CISA KEVNot currently listed
Published2026-09-01
Last modified2026-10-08
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:N
Description
LibreNMS through 26.4.0 renders JSON fields (name, ip, model, author, commit message) returned by the admin-configurable Oxidized integration URL (oxidized.url) into the device showconfig page without applying htmlspecialchars(). An administrator who points the Oxidized URL at an attacker-controlled server (SSRF) can cause it to return malicious JSON, resulting in stored/persistent cross-site scripting affecting all users who view any device's showconfig tab. Fixed in 26.7.0.
Weakness classification
- disclosure@vulncheck.com: CWE-79