PT-2025-44487 · Nagios · Nagios Fusion

Tisha Manandhar · Published 2025-10-30 · Updated 2025-10-30 · CVE-2023-53689

Positive Technologies · (AI Summary)

CVSS v2.0

8.5

8.5

High

Base vector

AV:N/AC:L/Au:S/C:C/I:C/A:N

Name of the Vulnerable Software and Affected Versions Nagios Fusion versions prior to 4.2.0

Description Nagios Fusion versions prior to 4.2.0 have a reflected cross-site scripting (XSS) issue in the license key configuration process. This allows an attacker to execute scripts in a user's browser by tricking them into following a specially crafted URL. Successful exploitation can lead to the theft of credentials or session information, potentially granting unauthorized administrative access.

Recommendations Update to Nagios Fusion version 4.2.0 or later.

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

BDU:2025-15969

CVE-2023-53689

Affected Products

Nagios Fusion

References · 7

• https://nagios.com/changelog/nagios-fusion · Patch
• https://nagios.com/products/security/#fusion · Patch, Vendor Advisory
• https://bdu.fstec.ru/vul/2025-15969 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2023-53689 · Security Note
• https://vulncheck.com/advisories/nagios-fusion-license-information-reflected-xss · Note
• https://dbugs.ptsecurity.com/vulnerability/PT-2025-44487 · Note
• https://twitter.com/CVEnew/status/1984012726847349223 · Twitter Post