| Package | Affected versions | Patched versions |
|---|---|---|
| sylius/sylius | ≥ 2.0.0, < 2.0.16≥ 2.1.0, < 2.1.12≥ 2.2.0, < 2.2.3 | 2.0.162.1.122.2.3 |
| sylius | ≥ 2.0.0, < 2.0.16≥ 2.1.0, < 2.1.12≥ 2.2.0, < 2.2.3 | 2.0.162.1.122.2.3 |
An authenticated stored cross-site scripting (XSS) vulnerability exists in multiple places across the shop frontend and admin panel due to unsanitized entity names being rendered as raw HTML.
Shop breadcrumbs (shared/breadcrumbs.html.twig): The breadcrumbs macro uses the Twig |raw filter on label values. Since taxon names, product names, and ancestor names flow directly into these labels, a malicious taxon name like <img src=x onerror=alert('XSS')> is rendered and executed as JavaScript on the storefront.
Admin product taxon picker (ProductTaxonTreeController.js): The rowRenderer method interpolates ${name} directly into a template literal building HTML, allowing script injection through taxon names in the admin panel.
Admin autocomplete fields (Tom Select): Dropdown items and options render entity names as raw HTML without escaping, allowing XSS through any autocomplete field displaying entity names.
An authenticated administrator can inject arbitrary HTML or JavaScript via entity names (e.g. taxon name) that is persistently rendered for all users.
The issue is fixed in versions: 2.0.16, 2.1.12, 2.2.3 and above.
Override vulnerable templates and JavaScript controllers at the project level.
templates/bundles/SyliusShopBundle/shared/breadcrumbs.html.twig:
{% macro breadcrumbs(items) %}
<ol class="breadcrumb" aria-label="breadcrumbs">
{% for item in items %}
<li class="breadcrumb-item fw-normal{{ item.active is defined and item.active ? ' active' }}">
{% if item.path is defined %}
<a class="link-reset" href="{{ item.path }}" {{ item.test_attribute is defined ? sylius_test_html_attribute(item.test_attribute) }}>{{ item.label }}</a>
{% else %}
<span class="text-body-tertiary text-break" {{ item.test_attribute is defined ? sylius_test_html_attribute(item.test_attribute) }}>{{ item.label }}</span>
{% endif %}
</li>
{% endfor %}
</ol>
{% endmacro %}
templates/bundles/SyliusShopBundle/account/order/show/content/breadcrumbs.html.twig:
{% from '@SyliusShop/shared/breadcrumbs.html.twig' import breadcrumbs as breadcrumbs %}
{% set order = hookable_metadata.context.order %}
<div class="col-12">
{{ breadcrumbs([
{ label: 'sylius.ui.home'|trans, path: path('sylius_shop_homepage')},
{ label: 'sylius.ui.my_account'|trans, path: path('sylius_shop_account_dashboard')},
{ label: 'sylius.ui.order_history'|trans, path: path('sylius_shop_account_order_index')},
{ label: '#'~order.number, active: true, test_attribute: 'order-number' }
]) }}
</div>
Running one of these products? Scan your site to see whether it exposes a vulnerable version.
Scan my site freeDisable the vendor controller in assets/admin/controllers.json:
"product-taxon-tree": {
- "enabled": true,
+ "enabled": false,
"fetch": "lazy"
},
Create assets/admin/controllers/product_taxon_tree_controller.js — copy the original from vendor/sylius/sylius/src/Sylius/Bundle/AdminBundle/Resources/assets/controllers/ProductTaxonTreeController.js and apply the following change:
+ const escapeHtml = (str) => {
+ const div = document.createElement('div');
+ div.textContent = str;
+ return div.innerHTML;
+ };
// in rowRenderer:
- <span class="infinite-tree-title">${name}</span>
+ <span class="infinite-tree-title">${escapeHtml(name)}</span>
Register the patched controller in assets/admin/bootstrap.js:
import ProductTaxonTreeController from './controllers/product_taxon_tree_controller';
app.register('sylius--admin-bundle--product-taxon-tree', ProductTaxonTreeController);
assets/admin/scripts/autocomplete-xss-protection.js:
const escapeHtml = (str) => {
if (typeof str !== 'string') return str;
const div = document.createElement('div');
div.textContent = str;
return div.innerHTML;
};
document.addEventListener('autocomplete:pre-connect', (event) => {
const options = event.detail.options;
if (!options.render) return;
const labelField = options.labelField || 'text';
const wrapRenderer = (renderer) => {
if (!renderer) return renderer;
return (data, escape) => {
const escaped = { ...data };
if (escaped[labelField]) {
escaped[labelField] = escapeHtml(escaped[labelField]);
}
return renderer(escaped, escape);
};
};
if (options.render.item) options.render.item = wrapRenderer(options.render.item);
if (options.render.option) options.render.option = wrapRenderer(options.render.option);
});
Import in assets/admin/entrypoint.js before bootstrap:
+ import './scripts/autocomplete-xss-protection';
import './bootstrap.js';
yarn encore dev # or: yarn encore production
We would like to extend our gratitude to the following individuals for their detailed reporting and responsible disclosure of this vulnerability:
If you have any questions or comments about this advisory: