What is CVE-2019-25421?

CVE-2019-25421 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-2019-25421?

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

XSS in Comodo Dome Firewall

CVE-2019-25421

Comodo Dome Firewall 2.7.0 contains multiple cross-site scripting vulnerabilities that allow attackers to inject malicious scripts through the policyfw endpoint. Attackers can submit POST requests with JavaScript payloads in the mac, target, and remark parameters to execute arbitrary code in administrator browsers or store persistent scripts in the application.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.004 (32.7th 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-2019-25421?: CVE-2019-25421 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-2019-25421?: Medium severity. CVSS v3 base score is 6.1 out of 10.