dbcve.org
Missing AuthorizationWeakness · CWE-862

CVE-2025-31879

MEDIUM · 5.4 CVSS v3.1 Published 2025-04-01
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
60/100
Remediation priority · Elevated
Remotely reachable Zero-click

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 · unedited
Missing Authorization vulnerability in Dmitry V. (CEO of "UKR Solution") Barcode Generator for WooCommerce embedding-barcodes-into-product-pages-and-orders allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Barcode Generator for WooCommerce: from n/a through <= 2.0.4.

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 confidence

The Barcode Generator for WooCommerce plugin <= 2.0.4 contains a missing authorization vulnerability that allows attackers to exploit incorrectly configured access control security levels, potentially enabling unauthorized access to barcode generation functionality for product pages and orders.

MitigationImplement proper authorization checks (nonce verification and capability/permission validation) on all sensitive plugin functions and AJAX endpoints to ensure only authenticated users with appropriate privileges can access barcode generation features.

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
Low
User interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
Low
Availability
Low

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/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 checks

Work through these to decide whether this CVE applies to you.

  1. Verify the Barcode Generator for WooCommerce plugin version
    Navigate to Plugins > Installed Plugins in WordPress admin, find 'Barcode Generator for WooCommerce', and read the version number displayed beneath the plugin name. Alternatively, check the plugin's main PHP file (typically in wp-content/plugins/ barcode-generator-for-woocommerce/) for the 'Version' header in the plugin comment block.
    Affected if The installed version is 2.0.4 or lower (any version up to and including 2.0.4).
  2. Confirm the plugin is active on the site
    In WordPress admin, go to Plugins > Installed Plugins and verify that 'Barcode Generator for WooCommerce' shows as 'Active' rather than 'Inactive' or 'Must Use'.
    Affected if The plugin is currently active, enabling the vulnerable code to be executed.
  3. Inspect plugin AJAX endpoints for missing authorization
    Examine the plugin's main PHP file(s) for AJAX action hooks (add_action('wp_ajax_...') and add_action('wp_ajax_nopriv_...')) that handle barcode generation requests. Verify whether these endpoints include capability checks (current_user_can()) or nonce verification before executing sensitive operations.
    Affected if AJAX endpoints exist that handle barcode generation for products or orders without verifying user capabilities or validating nonces.
  4. Check for capability validation on barcode generation functions
    Search the plugin source code (in wp-content/plugins/barcode-generator-for-woocommerce/) for functions that generate barcodes for products or orders. Look for current_user_can() calls or similar permission checks before any barcode generation or export logic.
    Affected if No capability or permission checks are present before barcode generation logic executes, meaning any authenticated user (or unauthenticated user if nopriv hooks exist) can access these functions.

A site is affected if the Barcode Generator for WooCommerce plugin version is 2.0.4 or lower AND the plugin is active, with AJAX endpoints or barcode generation functions lacking proper authorization checks (nonce verification and user capability validation).

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

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 data
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Implement proper authorization checks (nonce verification and capability/permission validation) on all sensitive plugin functions and AJAX endpoints to ensure only authenticated users with appropriate privileges can access barcode generation features.

Have this fixed Scoped from the published advisory
  • Consultation4.0 h
  • Implementation8.0 h
  • Testing6.0 h
  • Review / QA4.0 h
22.0 hours of engineering $3,860
Get help mitigating

An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $6,176.

Scan for this in your stack

Free · runs locally
dbcve dependency scanner

Check whether your project pulls in CVE-2025-31879 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.

Get it on GitHub Scan in the browser

References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2025-31879 in production — separate from our analysis above.

No notes yet

Be the first to add a field note for this CVE — a mitigation you’ve verified, a version caveat, or a link to a working fix. Sign in above to contribute.

What this is

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.

What belongs here
  • 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