# WC Vendors – WooCommerce Multivendor, WooCommerce Marketplace, Product Vendors <= 2.7.2.2 - Missing Authorization to Unauthenticated Database Update Trigger

- **ID:** WPSEC-2026-1268
- **Plugin:** WC Vendors – WooCommerce Multivendor, WooCommerce Marketplace, Product Vendors (`wc-vendors`), https://wordpress.org/plugins/wc-vendors/
- **Affected versions:** all versions before 2.7.3
- **Fixed in:** 2.7.3 (Update to 2.7.3 or later.)
- **Severity:** Medium 5.3 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N)
- **Weakness:** CWE-862
- **Usage among sites WPSec scans:** plugin Low, affected versions None seen (as of 2026-10-20)
- **Attack surface analysis:** https://attacksurface.wpsec.com/plugin/wc-vendors
- **Fix released:** 2026-10-19
- **Published:** 2026-10-20
- **URL:** https://wpsec.com/vuln/WPSEC-2026-1268/

## Description

The WC Vendors – WooCommerce Multivendor, WooCommerce Marketplace, Product Vendors plugin for WordPress is vulnerable to unauthorized access via the 'do_update_wcvendors' action in all versions up to, and including, 2.7.2.2, due to a missing capability check and missing nonce verification in the install_actions() function, which is hooked to admin_init. admin_init also fires for requests to admin-ajax.php and admin-post.php, so the handler runs for logged-out visitors. This makes it possible for unauthenticated attackers to queue and start the plugin's pending database update routines before a site administrator approves them, and to add the database update notice to the admin area.

## References

- https://wpsec.com/vuln/WPSEC-2026-1268/
- https://plugins.svn.wordpress.org/wc-vendors/tags/2.7.3/
- https://wordpress.org/plugins/wc-vendors/

Source: WPSec, https://wpsec.com/vuln/WPSEC-2026-1268/

License: CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). Free to use, share and adapt, also commercially, if you credit WPSec and link to this advisory.