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CVE-2026-81428— WC Vendors < 2.7.2.1 - Vendor+ Cross-Vendor Product and Arbitrary Post Modification via IDOR

Quick assessment

Affected
Unknown WC Vendors
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.

WC Vendors WordPress 插件在 2.7.2.1 版本之前，在保存产品变体（product variations）时未验证用户提供的 ID 的所有权或对象类型，导致拥有供应商（vendor）角色的已认证用户能够修改属于其他供应商的产品变体，并能够修改任意文章（posts）的状态和标题，从而产生 IDOR（不安全的直接对象引用）漏洞。

AI Predicted 6.5 Difficulty: Moderate EPSS 0.17% · P7

Affected Version Matrix 1

VendorProduct Version RangeStatus
Unknown WC Vendors < 2.7.2.1 affected
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I. Basic Information for CVE-2026-81428

Vulnerability Information
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Vulnerability Title
WC Vendors < 2.7.2.1 - Vendor+ Cross-Vendor Product and Arbitrary Post Modification via IDOR
Source: CVE Program / CVE List V5
Vulnerability Description
The WC Vendors WordPress plugin before 2.7.2.1 does not verify ownership or the object type of user-supplied IDs when saving product variations, allowing authenticated users with the vendor role to modify product variations belonging to other vendors, and to change the status and title of arbitrary posts, via IDOR.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Unknown WC Vendors 0 ~ 2.7.2.1 -

II. Public POCs for CVE-2026-81428

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III. Intelligence Information for CVE-2026-81428

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Vendor Advisories for CVE-2026-81428 (1)

Same Patch Batch · Unknown · 2026-09-02 · 66 CVEs total

CVE-2026-4357 10.0 CRITICAL Embed HTML5 Game <= 1.3 - Unauthenticated Arbitrary File Upload
CVE-2026-77009 9.9 CRITICAL WatchMan-Site7 3.1.1 - 4.2.0 - Subscriber+ RCE via Debug Console
CVE-2025-9314 9.8 CRITICAL Developer Tools <= 1.1.3 – Unauthenticated Arbitrary File Upload
CVE-2025-15485 8.2 HIGH Auto x LINE <= 1.0.0 – Unauthenticated REST API Endpoints Call
CVE-2026-83547 6.8 MEDIUM Xpro Elementor Addons 1.6.0 - 1.7.3 - Contributor+ Stored XSS via Multiple Widgets
CVE-2026-82884 6.8 MEDIUM All in One SEO < 5.0.0.1 - Contributor+ Stored XSS via ai-assistant Block
CVE-2026-10821 6.6 MEDIUM Yoast SEO Premium < 27.6.1 - Author+ Arbitrary .htaccess Directive Injection to RCE
CVE-2026-2688 6.5 MEDIUM CM HIPAA Forms < 3.2.0 - Unauthenticated Authorization Bypass
CVE-2024-3773 5.9 MEDIUM LiveJournal Shortcode <= 1.1.1 - Contributor+ Stored XSS via Shortcode
CVE-2026-2811 5.4 MEDIUM Ajaxify Comments < 3.2 - Unauthenticated HTTP Header Injection
CVE-2026-8151 5.4 MEDIUM Simple Membership MailChimp Integration < 1.9.8 - API Key Update via CSRF
CVE-2025-15481 5.3 MEDIUM Notification Bar for WordPress <= 1.1.8 – Unauthenticated Subscriber Data Disclosure
CVE-2026-17563 5.3 MEDIUM WP User Frontend < 4.3.11 - Unauthenticated Post Creation via Subscription-Gated Form
CVE-2025-8945 5.3 MEDIUM Wp Edit Password Protected < 1.3.5 - Protection Bypass via REST API
CVE-2025-15490 5.3 MEDIUM Passster < 4.2.26 - Global Protection Bypass
CVE-2026-77793 5.3 MEDIUM RegistrationMagic < 6.0.9.9 - Unauthenticated Payment Bypass via Omitted Price Field
CVE-2026-77794 5.3 MEDIUM RegistrationMagic 6.0.0.0 - 6.0.9.8 - Unauthenticated Payment Bypass via Zero Quantity
CVE-2025-15489 5.3 MEDIUM Passster < 4.2.24 - Password Protection Bypass
CVE-2026-83533 5.3 MEDIUM WP Express Checkout < 2.4.9 - Unauthenticated Payment Bypass via wpec_process_payment
CVE-2026-78153 5.3 MEDIUM Restrict User Access 2.6 - 2.8 - Unauthenticated Content Protection Bypass via REST API Ro

Showing top 20 of 66 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: WC Vendors
Same vendor: Unknown

V. Comments for CVE-2026-81428

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