PT-2025-44479 · Nagios Enterprises · Nagios Xi

Published 2025-10-30 · Updated 2025-10-30 · CVE-2021-47699

Positive Technologies (AI Summary)

CVSS v2.0

5.5

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions Nagios XI versions prior to 5.8.7

Description Nagios XI versions prior to 5.8.7 are susceptible to cross-site scripting (XSS) through the Audit Log page’s Send to NLS form. The issue stems from inadequate validation or escaping of user-supplied input, potentially enabling an attacker to inject and execute arbitrary script within a victim’s browser.

Recommendations Update to version 5.8.7 or later.

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

BDU:2025-14412

CVE-2021-47699

Affected Products

Nagios Xi

References · 6

• https://bdu.fstec.ru/vul/2025-14412 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2021-47699 · Security Note
• https://nagios.com/changelog/nagios-xi · Patch
• https://osv.dev/vulnerability/CVE-2021-47699 · Vendor Advisory
• https://twitter.com/CVEnew/status/1984030156437250548 · Twitter Post
• https://vulncheck.com/advisories/nagios-xi-xss-in-audit-log-via-send-to-nls-form · Note