CVE-2026-81426

WC Vendors – WooCommerce Multivendor, WooCommerce Marketplace, Product Vendors < 2.7.2.1 - Cross-Site Request Forgery

2026-09-02 00:00
Usama Arshad

Strategic Overview

Status
Patched in 2.7.2.1
Affected Plugin
WC Vendors – WooCommerce Multivendor, WooCommerce Marketplace, Product Vendors
Affected Version
< 2.7.2.1
CVSS
4.3Medium
Weakness type
CWE-352 · Cross-Site Request Forgery (CSRF)
CVE
CVE-2026-81426
View all WC Vendors – WooCommerce Multivendor, WooCommerce Marketplace, Product Vendors vulnerabilities

At a glance

CVE-2026-81426 is a medium-severity Cross-Site Request Forgery (CSRF) vulnerability in the WC Vendors WordPress plugin, affecting versions < 2.7.2.1. It carries a CVSS score of 4.3 (reachable over the network; low attack complexity). Exploitation requires no authentication. The issue is fixed in version 2.7.2.1; sites on affected versions should update now. Disclosed September 2026, reported by Usama Arshad.

Vulnerability Overview

The WC Vendors – WooCommerce Multivendor, WooCommerce Marketplace, Product Vendors plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to 2.7.2.1. This is due to missing or incorrect nonce validation on a function. This makes it possible for unauthenticated attackers to perform an unauthorized action via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.

Technical Analysis

The vector marks this flaw as remotely reachable over the network, with low attack complexity — no special timing or configuration is needed, and no privileges on the target site.

CWE-352: Cross-Site Request Forgery (CSRF)

Reaching this weakness in WC Vendors < 2.7.2.1 takes a caller who can reach the endpoint. Cross-site request forgery abuses the fact that browsers attach a victim's cookies to any request, so a state-changing action that only checks who you are, not whether you meant to act, can be triggered from another site.

An attacker who gets a logged-in user to load a crafted page can perform that action as them, with the impact scaling to whatever the victim's role is allowed to do. For WC Vendors the fix is 2.7.2.1: builds < 2.7.2.1 are affected, anything from 2.7.2.1 onward is not.

Remediation

Update to version 2.7.2.1, or a newer patched version

How does WordSec protect against this?

The attempt arrives as an ordinary request to WC Vendors: WordSec's web application firewall inspects request payloads before WordPress loads them. None of that substitutes for the fix: WC Vendors 2.7.2.1 closes this, and updating the plugin is the step that ends it.

  • Firewall
  • Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2026-81426https://www.wordfence.com/threat-intel/vulnerabilities/id/f537ec0e-8f6a-42ba-b81a-d026ffa22a75https://nvd.nist.gov/vuln/detail/CVE-2026-81426

Related records

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