CVE-2026-93754
9.8, criticalpayever Checkout - Composable Payment Gateway Unrestricted Upload of File with Dangerous Type Vulnerability
- CVSS
- 9.8, critical critical CVSS v3.1
- EPSS, next 30 days
- n/a
- Exploitation
- No public evidence
- Published
- 7 Nov 2026today
Description
The payever - WooCommerce Gateway plugin for WordPress is vulnerable to arbitrary file upload leading to remote code execution in various versions up to, and including, 4.8.0. Three WooCommerce-API callbacks (payever_set_sandbox_api_keys, payever_toggle_subscription, payever_synchronization_incoming) are registered with no authentication, capability check, or nonce, and the upload_image() routine writes a remotely fetched file to the public uploads directory using an attacker-controlled basename() BEFORE validating the file type. This makes it possible for unauthenticated attackers to write an executable PHP file and achieve remote code execution. NOTE: the token-recovery leg of the full chain depends on the plugin's outbound validateToken() call to Payever's service; the unauthenticated hard-coded-credential identity overwrite (CWE-862/CWE-798) is independently exploitable.
Details
- Vendor
- Payever
- Product
- payever Checkout - Composable Payment Gateway
- Weakness
- CWE-434 (opens in a new tab)
- Status
- Deferred
- Updated
- 7 Nov 2026
- Assigner
- security@wordfence.com
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
References 13
Other references 13
- plugins.trac.wordpress.org /browser/payever-woocommerce-gateway/trunk/includes/class-payever-log-manager.php?rev=3647773#L35 (opens in a new tab)
- plugins.trac.wordpress.org /browser/payever-woocommerce-gateway/trunk/includes/class-payever-synchronization.php?rev=3647773#L116 (opens in a new tab)
- plugins.trac.wordpress.org /browser/payever-woocommerce-gateway/trunk/includes/class-payever-synchronization.php?rev=3647773#L22 (opens in a new tab)
- plugins.trac.wordpress.org /browser/payever-woocommerce-gateway/trunk/includes/class-payever-synchronization.php?rev=3647773#L683 (opens in a new tab)
- plugins.trac.wordpress.org /browser/payever-woocommerce-gateway/trunk/includes/logger/class-payever-logger.php?rev=3647773#L18 (opens in a new tab)
- plugins.trac.wordpress.org /browser/payever-woocommerce-gateway/trunk/includes/synchronization/actions/class-payever-action-update-product.php?rev=3647773#L448 (opens in a new tab)
- plugins.trac.wordpress.org /browser/payever-woocommerce-gateway/trunk/includes/synchronization/actions/class-payever-action-update-product.php?rev=3647773#L547 (opens in a new tab)
- plugins.trac.wordpress.org /browser/payever-woocommerce-gateway/trunk/includes/synchronization/management/class-payever-import-manager.php?rev=3647773#L21 (opens in a new tab)
5 more
- plugins.trac.wordpress.org /browser/payever-woocommerce-gateway/trunk/includes/synchronization/management/class-payever-subscription-manager.php?rev=3647773#L79 (opens in a new tab)
- plugins.trac.wordpress.org /browser/payever-woocommerce-gateway/trunk/vendor/payever/core-sdk-php/lib/Payever/Core/Http/Client/CurlClient.php?rev=3647773#L258 (opens in a new tab)
- plugins.trac.wordpress.org /browser/payever-woocommerce-gateway/trunk/woocommerce-payever-gateway.php?rev=3647773#L145 (opens in a new tab)
- plugins.trac.wordpress.org /changeset?reponame=&old=3761918%40payever-woocommerce-gateway&new=3761918%40payever-woocommerce-gateway (opens in a new tab)
- wordfence.com /threat-intel/vulnerabilities/id/03412063-d73a-4c5c-8dc6-3e76a5d975a5?source=cve (opens in a new tab)
The kind is read from NVD's tags where present and from the shape of the URL otherwise, so treat it as a hint.
Beyond this page
Is CVE-2026-93754 in your network?
This page tells you how dangerous CVE-2026-93754 is out there. Whether it sits on one of your devices, only a scan of your own network can tell. That is what our systems do, every day, for the companies we protect.
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EXYS7600 OCELOT
Find it before attackers do
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EXYS7950 KONDRA
Detect it if it's exploited
Until the patch is applied, Kondra monitors your network, events and endpoints in real time. It keeps an inventory of the software installed on every endpoint, and its anomaly detection rules flag what an attacker does once inside.
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Assembled from the NVD 2.0 API, the CISA Known Exploited Vulnerabilities Catalog and FIRST EPSS. Scores are as of our last collection on 7 Nov 2026, not the live upstream state.