CVE-2025-48047
Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.
NVD · uneditedAn authenticated user can perform command injection via unsanitized input to the NetFax Server’s ping functionality via the /test.php endpoint.
Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.
dbcve analysis · moderate confidenceAn authenticated user can inject OS commands through unsanitized input passed to the ping functionality in NetFax Server via the /test.php endpoint, allowing remote code execution with high severity (CVSS 9.4).
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.
From the vector- Attack vector
- Network
- Complexity
- Low
- Privileges
- High
- Authentication
- X
- User interaction
- None
- Scope
- X
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.
dbcve checksWork through these to decide whether this CVE applies to you.
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Confirm NetFax Server installationIdentify if NetFax Server is running in your environment by checking for the service or reviewing installed software packagesAffected if NetFax Server is present and the /test.php endpoint is accessible
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Verify /test.php endpoint existsAttempt to access /test.php on the server (e.g., via HTTP GET request to your-server/test.php)Affected if The endpoint returns a valid response rather than a 404 error
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Check ping functionality availabilityReview the /test.php endpoint to confirm the ping/ICMP testing feature is present and exposedAffected if The endpoint exposes a ping or network test feature that accepts user input
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Confirm authentication status on /test.phpTest whether /test.php requires valid user credentials to access or whether it permits unauthenticated requestsAffected if The endpoint can be accessed with valid user authentication (the vulnerability requires authenticated access)
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Compare installed NetFax Server versionIf version information is available from the NetFax Server installation or admin interface, compare against any documented affected version ranges from vendor advisoriesAffected if The installed version falls within an affected version range, if such ranges become available
You are affected if NetFax Server is running with the /test.php endpoint accessible to authenticated users and the ping functionality is enabled.
Generated from the published advisory. Verify against your own configuration.
Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.
From vendor dataImplement strict input validation and sanitization on the /test.php endpoint, escaping or whitelisting all shell metacharacters before system calls; consider removing or restricting the ping functionality to admin-only and applying the principle of least privilege.
- Consultation6.0 h
- Implementation12.0 h
- Testing10.0 h
- Review / QA4.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $8,928.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2025-48047 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2025-48047 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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- Verified mitigations, workarounds, and config changes
- Version or environment caveats, and links to real fixes
- No weaponised exploit code, or anything meant to cause harm
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