CVE-2019-25372
Reflected XSS in OPNsense diag_traceroute.php Allows Script Injection
Publication date: 2026-02-15
Last updated on: 2026-02-18
Assigner: VulnCheck
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| opnsense | opnsense | 19.1 |
Helpful Resources
Exploitability
| 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. |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
This vulnerability is a reflected cross-site scripting (XSS) issue in OPNsense 19.1. It occurs because the software does not properly validate input in the host parameter. An attacker can send specially crafted POST requests to the diag_traceroute.php page, injecting malicious scripts that execute in the browser of a user who views the response.
How can this vulnerability impact me? :
The vulnerability allows attackers to execute arbitrary JavaScript in the context of a user's browser session without authentication. This can lead to theft of sensitive information, session hijacking, or performing actions on behalf of the user, potentially compromising the security and privacy of affected users.
How does this vulnerability affect compliance with common standards and regulations (like GDPR, HIPAA)?:
I don't know
How can this vulnerability be detected on my network or system? Can you suggest some commands?
I don't know
What immediate steps should I take to mitigate this vulnerability?
I don't know