CVE-2026-29177 — craftcms/commerce
Fix: craftcms/commerce@b0683e0CVE-2026-29177 is a Cross-site Scripting (XSS) vulnerability in craftcms/commerce. A fix is available for craftcms/commerce — see the affected versions and patch details below.
Craft Commerce has Stored XSS in Craft Commerce Order Details Slideout
Exploitation Status
No confirmed exploitation observed yet
- CISA’s own triage has not observed active exploitation or public proof-of-concept code for this CVE as of its last assessment.
Exploitation and automatability from CISA’s SSVC triage for CVE-2026-29177.
EPSS Exploitation Probability
EPSS (Exploit Prediction Scoring System) is a daily probability model maintained by FIRST.org. It estimates the likelihood a CVE will be exploited in production environments within the next 30 days, derived from real-world threat intelligence signals.
Real-World Exposure
craftcms/commerce🐘craftcms/commerceReal-time download stats are indexed for npm and PyPI packages. This vulnerability affects Packagist packages — download data is not available via public APIs for these ecosystems.
Description
Summary
A Stored Cross-Site Scripting (XSS) vulnerability exists in the Craft Commerce Order details. Malicious JavaScript can be injected via the Shipping Method Name, Order Reference, or Site Name. When a user opens the order details slideout via a double-click on the order index page, the injected payload executes.
Reproduction Steps
- Navigate to Commerce -> Store Management -> Shipping Methods.
- Click "New Shipping Method".
- In the Name field, enter the following XSS payload:
<img src=x onerror=alert('XSS_Shipping')> - Save the Shipping Method.
- Place a new order or edit an existing order.
- Set the order's Shipping Method to the one created in the previous steps.
- Navigate to the Orders index page (
/admin/commerce/orders). - Double-click the target order to open the details slideout.
- Result: The XSS payload executes.
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 🐘Packagist | craftcms/commerce | ≥ 4.0.0&&< 4.10.2 | 4.10.2composer require craftcms/commerce:^4.10.2 |
| 🐘Packagist | craftcms/commerce | ≥ 5.0.0&&< 5.5.3 | 5.5.3composer require craftcms/commerce:^5.5.3 |
Detection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for craftcms/commerce, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update craftcms/commerce to 4.10.2 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2026-29177 is resolved across your whole dependency graph.
Workarounds
If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.
How O3 protects you
O3 Security's impact-aware SCA analyses which vulnerable code paths your application actually calls, so a match like CVE-2026-29177 can be triaged on real exposure rather than presence alone.
Tailored to CVE-2026-29177. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.
Frequently Asked Questions
Is CVE-2026-29177 in your dependencies?
O3 Security finds CVE-2026-29177 across Packagist dependencies, including transitive ones, and its impact-aware SCA ranks findings by whether your code actually calls the vulnerable path.