Cross-Site Scripting Vulnerability in Nagios Log Server
CVE-2016-15049

5.1MEDIUM

Key Information:

Vendor

NagiOS

Status
Log Server
Vendor
CVE Published:
30 October 2025

What is CVE-2016-15049?

Versions of Nagios Log Server prior to 1.4.2 are vulnerable to a cross-site scripting (XSS) flaw in the Dashboards section. This issue arises when rendering untrusted log entries in the Logs table, where log content is inadequately encoded for output. As a result, malicious data inserted into logs can execute scripts within the application context in the user's browser, potentially compromising user sessions and sensitive information.

Affected Version(s)

Log Server 0 < 1.4.2

References

https://www.nagios.com/changelog/nagios-log-server-2024r1/
release-notespatch
https://www.vulncheck.com/advisories/nagios-log-server-da...
third-party-advisory

CVSS V4

Score:
5.1
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
Unknown

Timeline

  • Vulnerability published

  • Vulnerability Reserved

JSON
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CVE-2016-15049 : Cross-Site Scripting Vulnerability in Nagios Log Server