AUGUST 15, 2026
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Case File

CVE-2026-48552

MEDIUM · CVSS 5.4 EPSS 0.17% Public Exploit

Source: NVD + CISA KEV + EPSS · Published 2026-08-12 · Last synced 2026-08-15

CyberRota Analysis

AI-Generated

Nagios Core versions prior to 4.5.14 and Nagios XI versions before 2026R1.7 are susceptible to DOM-based cross-site scripting due to unencoded JSON string values being inserted into the DOM from stored fields. This vulnerability enables attackers to execute arbitrary JavaScript in the victim's browser, potentially leading to data theft or session hijacking. Organizations using these versions should prioritize patching to mitigate the risk of exploitation.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

GitHub PoC Links

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2026-48552
Severity
MEDIUM
CVSS
5.4
EPSS
0.17%
Java

Original NVD 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.