CVE-2019-25426
Undergoing Analysis Undergoing Analysis - In Progress

Reflected XSS in Comodo Dome Firewall dnsmasq Endpoint

Publication date: 2026-02-19

Last updated on: 2026-02-20

Assigner: VulnCheck

Description
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 dnsmasq endpoint. Attackers can send POST requests with script payloads in the TRANSPARENT_SOURCE_BYPASS or TRANSPARENT_DESTINATION_BYPASS parameters to execute arbitrary JavaScript in users' browsers.

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Meta Information

Published
2026-02-19
Last Modified
2026-02-20
Generated
2026-07-06
AI Q&A
2026-02-19
EPSS Evaluated
2026-07-05
NVD
CVE-2019-25426
EUVD
EUVD-2019-19647

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
comodo dome_firewall to 2.7.0 (inc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-79 The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

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Executive Summary

CVE-2019-25426 is a reflected cross-site scripting (XSS) vulnerability in Comodo Dome Firewall version 2.7.0. It allows attackers to inject malicious scripts by sending specially crafted input to the dnsmasq endpoint. Specifically, attackers can send POST requests containing script payloads in the TRANSPARENT_SOURCE_BYPASS or TRANSPARENT_DESTINATION_BYPASS parameters, which results in the execution of arbitrary JavaScript code in the browsers of users who access the vulnerable endpoint.

Impact Analysis

This vulnerability can impact you by allowing attackers to execute arbitrary JavaScript in your users' browsers. This can lead to a variety of malicious outcomes such as stealing session cookies, redirecting users to malicious websites, performing actions on behalf of the user without their consent, or delivering malware. Since the attack requires user interaction (UI:R), it may be triggered when a user visits a crafted page or interacts with the vulnerable service.

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