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TI-2019-15377 Aliases CVE-2019-25323GHSA-rxgx-jjvj-9w6v

Heatmiser Netmonitor 3.03 - HTML Injection

Priority MEDIUM 62CWE-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
Low · Low · None
Fix status
No fix listed

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

Summary

Heatmiser Netmonitor v3.03 contains an HTML injection vulnerability in the outputSetup.htm page that allows attackers to inject malicious HTML code through the outputtitle parameter. Attackers can craft specially formatted POST requests to the outputtitle parameter to execute arbitrary HTML and potentially manipulate the web interface's displayed content.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00262 18th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
Yes
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
HeatmiserHeatmiser Netmonitor3.03—No fix listedCNA
  • Heatmiser Netmonitor VendorHeatmiser Affected 3.03 Fixed in — No fix listed CNA

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2019-25323
  2. 2026-10-03 Alias added: GHSA-rxgx-jjvj-9w6v

References

Exploit 1

Other 2

  • TI-2019-15376 Heatmiser Netmonitor 3.03 - Hardcoded Credentials CVSS 4.0CRITICAL 9.3
  • TI-2018-15621 Heatmiser Wifi Thermostat 1.7 Credential Disclosure via networkSetup.htm CVSS 4.0HIGH 8.7
  • TI-2019-15760 Heatmiser Wifi Thermostat 1.7 Cross-Site Request Forgery CVSS 4.0MEDIUM 5.3

Sources

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