CVE-2023-39854
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 · uneditedThe web interface of ATX Ucrypt through 3.5 allows authenticated users (or attackers using default credentials for the admin, master, or user account) to include files via a URL in the /hydra/view/get_cc_url url parameter. There can be resultant SSRF.
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 · high confidenceATX Ucrypt through version 3.5 has a file inclusion vulnerability in the /hydra/view/get_cc_url endpoint. The 'url' parameter accepts arbitrary URLs, allowing authenticated attackers to make the server fetch external resources (SSRF). Attackers can exploit default credentials for admin, master, or user accounts to gain the required authentication.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.
NVD · CPE data<= 3.5CVSS 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
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- None
- Availability
- None
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
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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Identify product and versionLocate the ATX Ucrypt installation and determine its version number. This is typically found in the application documentation, about page, or installation files.Affected if The installed version is ATX Ucrypt version 3.5 or lower (<= 3.5)
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Verify endpoint accessibilityConfirm that the /hydra/view/get_cc_url endpoint is exposed and reachable on the server. This may require checking the application's routing configuration or attempting to access the endpoint directly.Affected if The /hydra/view/get_cc_url endpoint is accessible without additional network restrictions
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Check authentication configurationExamine the application's authentication settings to determine whether admin, master, or user accounts are in use. Verify if default credentials (documented in product manuals) have been changed.Affected if The application uses default credentials or allows authentication with default admin/master/user accounts
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Test URL parameter behaviorIf authenticated, submit a request to /hydra/view/get_cc_url with the 'url' parameter pointing to an internal or controlled external resource to confirm arbitrary URL acceptance. Observe whether the server attempts to fetch the provided URL.Affected if The 'url' parameter accepts and attempts to fetch arbitrary URLs without strict allowlist validation
You are affected if running ATX Ucrypt version 3.5 or lower with the /hydra/view/get_cc_url endpoint accessible and the 'url' parameter accepting arbitrary URLs without allowlist validation.
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 allowlist-based URL validation for the url parameter, disable default credentials and enforce password changes, and restrict network access from the application server to prevent SSRF exploitation.
- Consultation4.0 h
- Implementation8.0 h
- Testing4.0 h
- Review / QA3.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $5,408.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2023-39854 — 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-2023-39854 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
- No spam, self-promotion, credentials, or personal data