PT-2026-71151 · Nagios Enterprises+3 · Nagios Core+2

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CVE-2026-48552

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Published

2026-08-12

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Updated

2026-08-12

CVSS v3.1

5.4

Medium

VectorAV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Name of the Vulnerable Software and Affected Versions Nagios Core versions prior to 4.5.14 Nagios XI versions prior to 2026R1.7
Description DOM-based cross-site scripting occurs in jsonquery.js when unencoded JSON string values reflected from stored fields are inserted into the Document Object Model (DOM) without proper sanitization. This allows attackers to execute arbitrary JavaScript in the browser of a victim.
Recommendations Update Nagios Core to version 4.5.14 or later. Update Nagios XI to version 2026R1.7 or later.

Exploit

Fix

XSS

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Weakness Enumeration

Related Identifiers

CVE-2026-48552

Affected Products

Nagios Core
Nagios Xi
Nagios4