CVE-2026-29176: Craft Commerce has Stored XSS in Inventory Location Name

Summary A stored XSS vulnerability exists in the Commerce Settings - Inventory Locations page. The Name field is rendered without proper HTML escaping, allowing an attacker to execute arbitrary JavaScript.

This XSS triggers when an administrator (or user with product editing permissions) creates or edits a variant product.

Proof of Concept

Permissions Required - General - Access the control panel - Access Craft Commerce

- Craft Commerce - Manage inventory locations

Steps to Reproduce

1. Log in to the control panel 2. Navigate to Commerce → Inventory Locations 3. Create or edit a location 4. Set Name to the following payload: html <img src=x onerror="alert('XSS')"> 5. Save the location 6. Navigate to Commerce → Products and click "New Product" and click "New product variant" 7. The Inventory Location table loads, rendering the Inventory Location Name 8. XSS executes

Impact - Potential Session Hijacking - Potential Database Exfiltration - Potential Account Takeover by forcing a password change on the victim’s account. - Potential Privilege escalation, or creating new admin users.

Mitigation Sanitize the inventory location name field when rendering in the "Track Inventory" table.