Medium severity · published Oct 30, 2025
CVE-2016-15049
Nagios Log Server < 1.4.2 Dashboards Logs Table XSS
5.4
CVSS
0.5%
EPSS
No
On KEV
Description
Nagios Log Server versions prior to 1.4.2 are vulnerable to cross-site scripting (XSS) in the Dashboards section when rendering log entries in the Logs table. Untrusted log content was not safely encoded for the output context, allowing attacker-controlled data present in logs to execute script in the victim’s browser within the application origin.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
Required
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.5% · higher than 43% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
LS
Log Server · Nagios
before 1.4.2 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2016-15049
CVE.org
https://www.cve.org/CVERecord?id=CVE-2016-15049
Release Notes
https://www.nagios.com/changelog/nagios-log-server-2024r1/
Third Party Advisory
https://www.vulncheck.com/advisories/nagios-log-server-dashboards-logs-table-xss
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