CVE-2019-20139

Severity: medium (CVSS 5.4 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 26.1% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2019-12-30 · updated 2026-06-17
Weakness: CWE-79

Description

In Nagios XI 5.6.9, XSS exists via the nocscreenapi.php host, hostgroup, or servicegroup parameter, or the schedulereport.php hour or frequency parameter. Any authenticated user can attack the admin user.

Affected products

Nagios XI: 5.6.9

References

https://code610.blogspot.com/2019/12/multiple-xss-bugs-in-nagios-569.html
https://code610.blogspot.com/2019/12/multiple-xss-bugs-in-nagios-569.html

Get alerted when CVE-2019-20139 or the next vulnerability affects your stack