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CVE-2026-12951— MultiVendorX <= 5.0.18 - Authenticated (Store Manager+) SQL Injection via 'order_by' Parameter

Quick assessment

Affected
wcmp MultiVendorX – WooCommerce Multivendor Marketplace AI Powered Solutions
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 Dc Woocommerce Multi Vendor 插件在 5.0.18 及更低版本中，存在通过 REST 端点的 参数触发的 SQL 注入漏洞。该漏洞源于对用户传入参数转义不足，且对已有 SQL 查询语句缺乏充分的预处理机制——具体而言，该参数值被直接拼接至 SQL 的 ORDER BY 子句中，而所使用的 函数仅能防止字符突破单引号或双引号字符串字面量，无法提供有效防护。因此，具备供应商级别及以上权限（即拥有 能力）的认证攻击者，可借此向现有 SQL 查询语句后附加恶意 SQL 查询

CVSS 6.5 · Medium EPSS 0.31% · P21

Affected Version Matrix 1

VendorProduct Version RangeStatus
wcmp MultiVendorX – WooCommerce Multivendor Marketplace AI Powered Solutions ≤ 5.0.18 affected
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I. Basic Information for CVE-2026-12951

Vulnerability Information
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Vulnerability Title
MultiVendorX <= 5.0.18 - Authenticated (Store Manager+) SQL Injection via 'order_by' Parameter
Source: CVE Program / CVE List V5
Vulnerability Description
The Dc Woocommerce Multi Vendor plugin for WordPress is vulnerable to SQL Injection via the 'order_by' parameter of the /multivendorx/v1/compliance/report-abuse REST endpoint in versions up to and including 5.0.18. This is due to insufficient escaping on the user supplied parameter and lack of sufficient preparation on the existing SQL query — the value is concatenated directly into an ORDER BY clause where esc_sql() (which only neutralizes characters needed to break out of quoted string literals) provides no protection. This makes it possible for authenticated attackers, with vendor-level access and above (users granted the 'edit_stores' capability), to append additional SQL queries into already existing queries that can be used to extract sensitive information from the database.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
SQL命令中使用的特殊元素转义处理不恰当(SQL注入)
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
wcmp MultiVendorX – WooCommerce Multivendor Marketplace AI Powered Solutions 0 ~ 5.0.18 -

II. Public POCs for CVE-2026-12951

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III. Intelligence Information for CVE-2026-12951

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Patches & Fixes for CVE-2026-12951 (2)

Vendor Advisories for CVE-2026-12951 (1)

Vendor Pages for CVE-2026-12951 (1)

IV. Related Vulnerabilities

Same product: MultiVendorX – WooCommerce Multivendor Marketplace AI Powered Solutions
Same vendor: wcmp
Same weakness: CWE-89

V. Comments for CVE-2026-12951

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