TI-2019-14517 Aliases CVE-2019-20139 GHSA-vxr3-fcvj-wxgq

In Nagios XI 5.6.9, XSS exists via the nocscreenapi.php host, hostgroup, or servicegroup…

MEDIUM 46CWE-79Published 2019-12-30 · Updated 2024-08-05

Key facts

Attack vector: Network
Privileges required: Low
User interaction: Required
Attack complexity: Low
Impact type: Cross-site scripting
Confidentiality · integrity · availability: Low · Low · None
Fix status: No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-79.

Summary

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.

Why it matters now

EPSS 0.26112 98th percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by NVD

Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
—	—	all versions	—	No fix listed	CNA

— Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:nagios:nagios_xi:5.6.9:::::::*	5.6.9	Vulnerable	Nagios

cpe:2.3:a:nagios:nagios_xi:5.6.9:*:*:*:*:*:*:* Versions 5.6.9 Vulnerable ·Nagios

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2019-20139
2026-10-03 Alias added: GHSA-vxr3-fcvj-wxgq

References

Exploit 1

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

TI-2021-07545 Nagios XI version xi-5.7.5 is affected by OS command injection. KEVCVSS 3.1HIGH 8.8
TI-2021-07544 Nagios XI version xi-5.7.5 is affected by OS command injection. KEVCVSS 3.1HIGH 8.8
TI-2021-07543 Nagios XI version xi-5.7.5 is affected by OS command injection. KEVCVSS 3.1HIGH 8.8
TI-2019-11993 Nagios XI before 5.6.6 allows remote command execution as root. KEVCVSS 3.1HIGH 8.8
TI-2023-26027 Nagios XI before version 5.11.3 was discovered to contain a remote code execution (RCE)… CVSS 3.1CRITICAL 9.8
TI-2018-11196 Snoopy 1.0 in Nagios XI 5.5.6 allows remote unauthenticated attackers to execute… CVSS 3.0CRITICAL 9.8

See all 191 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences