Vulnerability · CVE-2019-25323
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 paramete
Published Feb 12, 2026 · catalog updated Feb 13, 2026 · Heatmiser Heatmiser Netmonitor
Last checked Nov 4, 2026. A connected source was read within the last 7 days.
Check if you run it
No confirmed exploitation is on record for CVE-2019-25323. EPSS is 0.26%. Act only if a listed version of Heatmiser Heatmiser Netmonitor is installed.
Gaps on this record
- No vendor fix or required action is stored. Compare the linked advisory before you change production.
Same product and reporting
- CVE-2019-25322 · Critical
- Severity
- Medium5.1
- Known exploitation
- Not in CISA/VulnCheck KEV
- EPSS
- 0.26%
- Remediation
- Vendor / distro source
- Affected products
- vendor Heatmiser Heatmiser Netmonitor 3.03
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.
Are you affected?
Enter the version you run. The result uses only the ranges stored on this record.
The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.
- vendor Heatmiser Heatmiser Netmonitor 3.033.03
How to fix CVE-2019-25323
No stored fix
No vendor fix text is stored. Use the linked advisory before you change production.
Version check
Seen in 3.03
Advisory
Open the cve_org record and follow its fix.
Official advisories
What to do
Three questions, each answered from this record only. Confirm the vendor advisory before you patch.
Should you patch?
No confirmed exploitation is on record for CVE-2019-25323. EPSS is 0.26%. Act only if a listed version of Heatmiser Heatmiser Netmonitor is installed.
Which versions are affected?
Compare what you have installed with Heatmiser Heatmiser Netmonitor 3.03 3.03. Compare the installed version with the linked vendor advisory before you change production.
What should an analyst verify?
No weakness class is stored. EPSS 0.26%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.
Code
The project this record applies to. Exploit listings stay in References.
No public source repository is identified for this product.
Timeline
Detection, updates, and resolution for this record.
Feb 12, 2026 · EUVD
Detected
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.
Feb 13, 2026 · EUVD
Updated
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.
Sources
- CVE.orgVulnerability recordCVE-2019-25323
Official CVE identifier
cve.org - FIRST EPSSExploitation probabilityCVE-2019-25323
30-day exploitation probability 0.26%
first.org - EUVDVulnerability recordEUVD-2019-19570
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 arb
euvd.enisa.europa.eu
References
Freshness
Last verified in this catalog Nov 3, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.
- CVE.orgNov 4, 2026
- FIRST EPSSNov 3, 2026
- EUVDNov 3, 2026