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TI-2017-14275 Aliases CVE-2017-20209GHSA-vcfc-84hr-mgwm

Nagios Fusion < 4.0.1 XSS via Users/Servers Page

Priority LOW 24CWE-79Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
Passive
Attack complexity
Low
Attack requirements
None
Impact type
Cross-site scripting
Confidentiality · integrity · availability
None · None · None
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-79.

Summary

Nagios Fusion versions prior to 4.0.1 are vulnerable to cross-site scripting (XSS) via the Users and Servers pages. Insufficient validation or escaping of user-supplied input may allow an attacker to inject and execute arbitrary script in the context of a victim's browser.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00516 44th percentileScored 2026-11-07
Fix Fixed Fusion (Nagios): 4.0.1

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
NagiosFusionbefore 4.0.14.0.1Patch availableCNA
  • Fusion VendorNagios Affected before 4.0.1 Fixed in 4.0.1 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:nagios:fusion:4.0.0:*:*:*:*:*:*:*4.0.0VulnerableNagios
  • cpe:2.3:a:nagios:fusion:4.0.0:*:*:*:*:*:*:* Versions 4.0.0 Vulnerable ·Nagios

Remediation

  • Fix · CNA Fusion (Nagios) Fixed in 4.0.1

Timeline

  1. 2026-10-02 Threatist record created from CVE-2017-20209
  2. 2026-10-03 Alias added: GHSA-vcfc-84hr-mgwm

References

Patch 1

  • TI-2020-17439 Improper Input Validation in Nagios Fusion 4.1.8 and earlier allows an authenticated… CVSS 3.1HIGH 8.8
  • TI-2020-17435 Command Injection in Nagios Fusion 4.1.8 and earlier allows for Privilege Escalation or… CVSS 3.1CRITICAL 9.8
  • TI-2020-17436 Command Injection in Nagios Fusion 4.1.8 and earlier allows Privilege Escalation from apache to root in cmd_subsys.php. CVSS 3.1CRITICAL 9.8
  • TI-2020-17442 Command Injection in Nagios Fusion 4.1.8 and earlier allows for Privilege Escalation to nagios. CVSS 3.1CRITICAL 9.8
  • TI-2020-17438 Execution with Unnecessary Privileges in Nagios Fusion 4.1.8 and earlier allows for… CVSS 3.1CRITICAL 9.8
  • TI-2020-17441 Incorrect SSL certificate validation in Nagios Fusion 4.1.8 and earlier allows for… CVSS 3.1CRITICAL 9.8
See all 18 →

Sources

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