EUVD-2026-74689
GHSA-wgp6-gqx5-628c
Severity by source
AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
AC:H reflects the prerequisite that nextcart_token must be uninitialized; all other metrics align with unauthenticated network access yielding full SQL and file-system control.
Primary rating from Vendor (Wordfence).
CVSS VectorVendor: Wordfence
Lifecycle Timeline
2DescriptionCVE.org
The Next-Cart Store to WooCommerce Migration plugin for WordPress is vulnerable to Authentication Bypass in all versions up to, and including, 3.9.8 via the NCWM_Kitconnect::run() function. This is due to the plugin registering the /wp-json/next_cart/v1/migration REST route with permission_callback set to __return_true and relying on a hardcoded fallback value of __token__ in get_option('nextcart_token', '__token__') when the nextcart_token option has not yet been written to the database. This makes it possible for unauthenticated attackers to bypass authentication to the migration endpoint by supplying the literal string __token__ as the token, gaining access to privileged handlers that pass attacker-controlled SQL directly to $wpdb->query() and $wpdb->get_results() - enabling arbitrary SQL execution including administrator account creation - and pass an attacker-controlled path to unlink(), enabling arbitrary file deletion and full site takeover. The hardcoded fallback is reachable whenever the nextcart_token option has not yet been populated, which occurs after WP-CLI, network, or programmatic plugin activation without a subsequent authenticated wp-admin visit, as token generation is deferred to admin_init via register_settings().
Articles & Coverage 1
AnalysisAI
Authentication bypass in the Next-Cart Store to WooCommerce Migration WordPress plugin (all versions ≤ 3.9.8) allows unauthenticated remote attackers to reach privileged migration endpoints and achieve full site takeover via arbitrary SQL execution and arbitrary file deletion. The root cause is a double design flaw: the /wp-json/next_cart/v1/migration REST route is registered with permission_callback set to __return_true (granting unrestricted access to all callers), and the token check falls back to the hardcoded literal __token__ via get_option('nextcart_token', '__token__') whenever the database option has never been written. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires that the `nextcart_token` WordPress database option has not yet been written to the `wp_options` table. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The NVD-assigned CVSS 3.1 vector CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H (8.1) is well-calibrated. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | Update the Next-Cart Store to WooCommerce Migration plugin to the version released at or after SVN changeset 3686100 - consult the Wordfence advisory (https://www.wordfence.com/threat-intel/vulnerabilities/id/739b57d9-8066-4c2a-9419-f6cd9409433c) and the WordPress.org plugin page for the exact patched version number, as this was not independently confirmed from the available data. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours: Inventory all WordPress installations using the affected plugin (versions ≤ 3.9.8); if migration is not actively in progress, immediately deactivate and delete the plugin. …
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External POC / Exploit Code
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