CVE-2026-48552: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in Nagios Enterprises, LLC. Nagios Core
Nagios Core before 4.5.14 and Nagios XI before 2026R1.7 are vulnerable to DOM-based cross-site scripting in jsonquery.js. Unencoded JSON string values reflected from stored fields are inserted into the DOM without sanitization, allowing attackers to run arbitrary JavaScript in the victim's browser.
CVE-2026-48552: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in Nagios Enterprises, LLC. Nagios Core
Description
Nagios Core before 4.5.14 and Nagios XI before 2026R1.7 are vulnerable to DOM-based cross-site scripting in jsonquery.js. Unencoded JSON string values reflected from stored fields are inserted into the DOM without sanitization, allowing attackers to run arbitrary JavaScript in the victim's browser.
CVSS v4.0
Score 5.1medium
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulnCheck
- Date Reserved
- 2026-05-21T18:34:46.418Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a7ca247bf8831d539d7ad53
Added to database: 08/12/2026, 16:41:43 UTC
Last updated: 08/12/2026, 16:41:43 UTC
Views: 1
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