PT-2026-6432 · Packagist · Craftcms/Commerce
Published
2026-02-02
·
Updated
2026-02-02
CVSS v4.0
6.1
Medium
| Vector | AV:N/AC:L/AT:N/PR:H/UI:P/VC:N/VI:N/VA:N/SC:L/SI:H/SA:N |
Summary
A stored XSS vulnerability in Craft Commerce allows attackers to execute malicious JavaScript in an administrator’s browser. This occurs because the Shipping Zone (Name & Description) fields in the Store Management section are not properly sanitized before being displayed in the admin panel.
Proof of Concept
Requirments
- General permissions:
- Access the control panel
- Access Craft Commerce
- Craft Commerce permissions:
- Manage store settings
- Manage shipping
- An active administrator elevated session
Steps to Reproduce
- Log in to the Admin Panel with the attacker account with the permissions mentioned above.
- Navigate to Commerce -> Store Management -> Shipping Zones (
/admin/commerce/store-management/primary/shippingzones). - Create a new shipping zone.
- In the Name field, enter the following payload:
<img src=x onerror="alert(document.domain)">- Click Save & Go back to the previous page.
- Notice the alert proving JavaScript execution.
Privilege Escalation to Administrator:
- Do the same steps above, but replace the payload with a malicious one.
- The following payload elevates the attacker’s account to Admin if there’s already an elevated session, replace the
<UserID>with the attacker id:
<img src=x onerror="fetch('/admin/users/<UserID>/permissions',{method:'POST',body:`CRAFT CSRF TOKEN=${Craft.csrfTokenValue}&userId=<UserID>&admin=1&action=users/save-permissions`,headers:{'content-type':'application/x-www-form-urlencoded'}})">- In another browser, log in as an admin & go to the vulnerable page (shipping zones page).
- Go back to the attacker account & notice it is now an admin.
The privilege escalation requires an elevated session. In a real-world scenario, an attacker can automate the process by forcing a logout if the victim’s session is stale; upon re-authentication, the stored XSS payload executes within a fresh elevated session to complete the attack.
Or even easier (and smarter), an attacker (using the XSS) can create a fake 'Session Expired' login modal overlay. Since it’s on the trusted domain, administrators will likely enter their credentials, sending them directly to the attacker.
Resources:
Fix
XSS
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Weakness Enumeration
Related Identifiers
Affected Products
Craftcms/Commerce