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craftcms/commerce · Security

Craft Commerce has Stored XSS in Product Type Name

GHSA ID
GHSA-2h2m-v2mg-656c
CVE ID
CVE-2026-25484
Severity
medium
Published
Updated
CVSS v4
4.8 · CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N

Description

Summary

Stored XSS via Product Type names. The name is not sanitized when displayed in user permissions settings.

The vulnerable input (source) is in Commerce (Product Type settings), but the sink is in CMS user permissions settings. Reporting to Commerce GHSA since the input originates here.

Users are recommended to update to the patched 5.5.2 release to mitigate the issue.

Proof of Concept

Required Permissions (Attacker)

  • Admin access (to edit Commerce settings)

Steps to Reproduce

  1. Log in as attacker with admin permissions.
  2. Go to Commerce -> Settings -> Product Types (/admin/commerce/settings/producttypes).
  3. Create a new Product Type.
  4. Set Name to:
<img src=x onerror="alert('XSS-ProductType')" hidden>
  1. Save the Product Type.
  2. Go to Users -> Edit any user -> Click on Permissions tab (/admin/users/{UserID}/permissions).
  3. Alert fires instantly (when the Product Type checkbox renders).

Resources

https://github.com/craftcms/commerce/commit/7e1dedf06038c8e70dce0187b7048d4ab8ffb75c

CWEs

  • CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

References

Open GitHub