CVE-2026-25456
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 · uneditedMissing Authorization vulnerability in Aarsiv Groups Automated FedEx live/manual rates with shipping labels a2z-fedex-shipping allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Automated FedEx live/manual rates with shipping labels: from n/a through <= 5.1.9.
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 confidenceMissing authorization vulnerability in the a2z-fedex-shipping WordPress plugin (versions up to 5.1.9) allows attackers to access shipping rate calculation and label generation functions without proper capability checks. The plugin fails to enforce access control on certain AJAX endpoints or admin functions, enabling unauthenticated or low-privilege users to exploit incorrectly configured access control security levels.
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
- Low
- Availability
- Low
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
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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Verify the a2z-fedex-shipping plugin is installedIn WordPress admin, go to Plugins > Installed Plugins and look for 'a2z FedEx Shipping' in the list. Note whether it is activated.Affected if Plugin is installed and active on the WordPress site
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Check the installed plugin versionClick on the plugin name in the plugins list to view its details, or check the plugin main file header for the 'Version' field. Compare the version number to 5.1.9 (versions up to and including 5.1.9 are affected).Affected if Installed version is 5.1.9 or lower
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Identify exposed AJAX endpointsExamine the plugin PHP files for add_action('wp_ajax_...) calls, specifically those handling shipping rate calculation (often containing 'rate', 'shipping', 'fedex' in the action name) and label generation functions. Note the action hook names.Affected if AJAX endpoints exist for shipping functions without capability checks
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Test unauthorized access to sensitive functionsAttempt to access the identified AJAX endpoints using a low-privilege user account or as a logged-out (unauthenticated) visitor by sending a request to /wp-admin/admin-ajax.php with the identified action parameter. Check if the server returns shipping rates or generates labels without returning a permission error.Affected if Sensitive shipping functions respond without requiring administrator-level capabilities or returning a capability check error
If the plugin is active with version 5.1.9 or lower and its shipping-related AJAX endpoints are accessible to unauthenticated or low-privilege users without capability verification, the environment is affected by this authorization bypass vulnerability.
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 proper WordPress capability checks (e.g., current_user_can()) on all sensitive AJAX actions and admin pages. Update to the latest patched version if available, or restrict access to shipping-related endpoints to administrator-level users only.
- Consultation4.0 h
- Implementation8.0 h
- Testing4.0 h
- Review / QA2.0 h
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Free · runs locallyCheck whether your project pulls in CVE-2026-25456 — 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-2026-25456 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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