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EUVD-2026-275543

2026-10-08T11:22:41.534619+00:00

EUVD-2026-275543

fkie_cve-2026-31823

2026-10-08T11:22:41.534660+00:00

Sylius is an Open Source eCommerce Framework on Symfony. 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 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: 1.9.12, 1.10.16, 1.11.17, 1.12.23, 1.13.15, 1.14.18, 2.0.16, 2.1.12, 2.2.3 and above.

GHSA-mx4q-xxc9-pf5q — Sylius Vulnerable to Authenticated Stored XSS

2026-10-08T11:22:41.534704+00:00

Affected: Packagist: sylius/sylius

### Impact

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 `` 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.

### Patches

The issue is fixed in versions: 2.0.16, 2.1.12, 2.2.3 and above.

### Workarounds

Override vulnerable templates and JavaScript controllers at the project level.

---

#### Step 1 — Override shop breadcrumbs template

`templates/bundles/SyliusShopBundle/shared/breadcrumbs.html.twig`:

```twig {% macro breadcrumbs(items) %}