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TI-2021-17382 Aliases CVE-2021-40272GHSA-6cg3-968w-gr56

OP5 Monitor 8.3.1, 8.3.2, and OP5 8.3.3 are vulnerable to Cross Site Scripting (XSS).

Priority MEDIUM 60CWE-79Published · Updated

Key facts

Attack vector
Network
Privileges required
None
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 · CISA ADP. Fix status from CNA. Impact type from CWE-79.

Summary

OP5 Monitor 8.3.1, 8.3.2, and OP5 8.3.3 are vulnerable to Cross Site Scripting (XSS).

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.01127 66th 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

CISA ADP · SSVC 2.0.3

Exploitation
Poc
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
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:op5:monitor:*:*:*:*:*:*:*:*8.3.0 – 8.3.3VulnerableOp5
  • cpe:2.3:a:op5:monitor:*:*:*:*:*:*:*:* Versions 8.3.0 – 8.3.3 Vulnerable ·Op5

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-40272
  2. 2026-10-03 Alias added: GHSA-6cg3-968w-gr56

References

Exploit 1

  • TI-2012-00253 op5config/welcome in system-op5config before 2.0.3 in op5 Monitor and op5 Appliance… CVSS 2.0HIGH 10.0
  • TI-2012-00252 license.php in system-portal before 1.6.2 in op5 Monitor and op5 Appliance before 5.5.3… CVSS 2.0HIGH 10.0
  • TI-2012-00255 op5 Monitor and op5 Appliance before 5.5.0 do not properly manage session cookies, which… CVSS 2.0HIGH 10.0
  • TI-2008-04780 The Nagios process in (1) Nagios before 3.0.5 and (2) op5 Monitor before 4.0.1 allows… CVSS 2.0MEDIUM 6.5
  • TI-2008-04781 Cross-site request forgery (CSRF) vulnerability in cmd.cgi in (1) Nagios 3.0.5 and (2)… CVSS 2.0MEDIUM 6.8
  • TI-2013-05181 Unspecified vulnerability in op5 Monitor before 6.1.3 allows attackers to read arbitrary… CVSS 2.0MEDIUM 5.0
See all 8 →

Sources

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