CVE-2026-39616
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 · uneditedAuthorization Bypass Through User-Controlled Key vulnerability in dFactory Download Attachments download-attachments allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Download Attachments: from n/a through <= 1.4.0.
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 confidenceThe dFactory Download Attachments WordPress plugin versions up to 1.4.0 contains an authorization bypass vulnerability via user-controlled key, allowing attackers to exploit incorrectly configured access control security levels. The vulnerability enables unauthorized access to download functionality due to improper validation of access control parameters.
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
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- Low
- Integrity
- None
- Availability
- None
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/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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Confirm plugin is installed and activeIn WordPress admin, go to Plugins > Installed Plugins and look for 'Download Attachments' by dFactory. Note whether it is installed and activated.Affected if The plugin is not installed or not activated, the check is not applicable.
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Identify installed plugin versionClick on the plugin name in the Plugins list to view details, or inspect the plugin header in /wp-content/plugins/download-attachments/main.php to find the Version field.Affected if The version cannot be determined or is unknown, further manual review is needed.
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Check if download functionality is enabledGo to plugin settings (Settings > Download Attachments) and verify whether the download feature is turned on. Look for any 'Enable downloads' or similar toggle option.Affected if Downloads are disabled in settings, the specific authorization flaw may not be exploitable in practice.
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Verify download endpoint exposureInspect the site for the download URL pattern (commonly /?download_attachment=ID or similar). Check if the endpoint responds to attachment IDs without requiring authentication.Affected if The download endpoint is accessible without authentication, the vulnerability is potentially present.
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Test attachment access controlAttempt to access an attachment with a known ID using an unauthenticated browser session or a low-privileged user account (subscriber). Verify if the file is served despite lacking proper permissions.Affected if Attachments download successfully for users without download permissions, the authorization bypass is confirmed.
A user is affected if the dFactory Download Attachments plugin is active with a vulnerable version, downloads are enabled, and the download endpoint serves files to unauthorized users.
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 dataUpdate the Download Attachments plugin to the latest version immediately. Review and harden access control logic to ensure all download requests properly validate user authorization before granting access.
- Consultation3.0 h
- Implementation6.0 h
- Testing3.0 h
- Review / QA2.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $3,984.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2026-39616 — 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-2026-39616 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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A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.
- 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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