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CVE-2026-93754— payever – WooCommerce Gateway <= 4.8.0 - Unauthenticated Arbitrary File Upload Leading to Remote Code Execution

Quick assessment

Affected
payever payever Checkout – Composable Payment Gateway
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

WordPress 的"Payever – WooCommerce Gateway"插件在 4.8.0 及更早的多个版本中存在任意文件上传漏洞，可导致远程代码执行。该插件注册了三个 WooCommerce API 回调函数（payever_set_sandbox_api_keys、payever_toggle_subscription 和 payever_synchronization_incoming），这些回调未进行身份验证、权限检查或 nonce 验证。其中，upload_image() 函数在验证文件类型之

CVSS 9.8 · Critical
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I. Basic Information for CVE-2026-93754

Vulnerability Information
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Vulnerability Title
payever – WooCommerce Gateway <= 4.8.0 - Unauthenticated Arbitrary File Upload Leading to Remote Code Execution
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
危险类型文件的不加限制上传
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
payever payever Checkout – Composable Payment Gateway 0 ~ 4.8.0 -

II. Public POCs for CVE-2026-93754

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III. Intelligence Information for CVE-2026-93754

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Other References for CVE-2026-93754 (13)

IV. Related Vulnerabilities

Same vendor: payever
Same weakness: CWE-434