What is CVE-2019-25420?

CVE-2019-25420 is a medium-severity vulnerability in Comodo Dome Firewall, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2026-02-19.

How severe is CVE-2019-25420?

Medium severity. CVSS v3 base score is 6.1 out of 10.

XSS in Comodo Dome Firewall

CVE-2019-25420

Comodo Dome Firewall 2.7.0 contains a reflected cross-site scripting vulnerability that allows attackers to inject malicious scripts by submitting crafted input to the snat endpoint. Attackers can send POST requests with JavaScript payloads in the port or snat_to_ip parameters to execute arbitrary scripts in users' browsers.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.004 (32.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

Affected products

Comodo Dome Firewall — versions 2.7.0
Comodo Dome_firewall

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

disclosure@vulncheck.com (Exploit, Third Party Advisory, exploit)
disclosure@vulncheck.com (Product, product)
disclosure@vulncheck.com (product, Not Applicable)
disclosure@vulncheck.com (Third Party Advisory, third-party-advisory)

Frequently asked questions

What is CVE-2019-25420?: CVE-2019-25420 is a medium-severity vulnerability in Comodo Dome Firewall, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2026-02-19.
How severe is CVE-2019-25420?: Medium severity. CVSS v3 base score is 6.1 out of 10.