2.7

CVSS Score

3.1

Basic Information

CVE ID

GHSA ID

GHSA-6wh5-mw9h-5c3w

EPSS Score

CWE

CWE-22

Published

10/21/2025

Updated

10/21/2025

KEV Status

Technology

PHP

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GHSA-6wh5-mw9h-5c3w

GHSA-6wh5-mw9h-5c3w: Shopware vulnerable to path traversal via Plugin upload

Impact

Malicious actors can exploit this vulnerability to write files within arbitrary directories on the filesystem of the Shopware web container. This could allow them to gain persistent shell access by uploading a PHP-shell file to an accessible folder.

It is important to note that this vulnerability is only present on on-premises installation of Shopware and not present on the SaaS installation due to additional security checks being implemented on the uploaded plugin files.

Description

A path traversal vulnerability allows malicious actors to access files and folders that are outside the folder structure accessible to the affected function. This vulnerability occurs when an application uses unfiltered user input to point to the path of a specific file and retrieve it. This can result in gaining read/write access to sensitive information, application code, back-end systems and other (critical) files on the operating system. In certain cases, it is even possible to store arbitrary files outside the relevant directory structure on the server in order to gain access to the server.

Applicability

The Plugin upload function in use by the Shopware application is vulnerable to path traversal. Within the on-premises version of the Shopware application users are able to extend the functionality of the application by installing ‘plugins’ also referred to as ‘apps’ or ‘extensions’. These plugins can be installed using the official store or by uploading a zip file containing the required files. To prevent path traversal the Shopware application implements a check that effectively prohibits files containing ‘..’ characters from being uploaded. During review of the source code, it was noticed that the check for the prohibited characters was only performed from the third entry (index 2) of the uploaded Zip file. This means that the second entry (index 1) within the Zip file can contain path traversal characters and thus allows files to be written in directories outside of the intended plugins folder.

To exploit this vulnerability, an admin account with permissions to upload plugins, is required.

Reproduction

To reproduce this vulnerability, the steps below can be followed.

Log in to an on-premises Shopware application with an admin account with permissions to upload plugins.
Create a malicious Zip file using the script provided in evidence 5.
Upload the generated malicious Zip file as a new plugin within the application
Access the filesystem of the Shopware application
Navigate to the path below: /var/www/html/custom/apps
Notice that an ‘evil.php’ file has been extracted within this folder.

(GitHub Advisory)

2.7

CVSS Score

3.1

Basic Information

CVE ID

GHSA ID

GHSA-6wh5-mw9h-5c3w

EPSS Score

CWE

CWE-22

Published

10/21/2025

Updated

10/21/2025

KEV Status

Technology

PHP

Technical Details

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:N

Package Name	Ecosystem	Vulnerable Versions	First Patched Version
shopware/platform	composer	>= 6.7.0.0, < 6.7.3.1	6.7.3.1
shopware/platform	composer	< 6.6.10.7	6.6.10.7
shopware/core	composer	>= 6.7.0.0, < 6.7.3.1	6.7.3.1
shopware/core	composer	< 6.6.10.7	6.6.10.7

Vulnerability Intelligence
Miggo AI

Root Cause Analysis

The vulnerability is a classic path traversal issue within the plugin upload functionality of Shopware. The root cause lies in the Shopware\Core\Framework\Plugin\PluginExtractor::validatePluginZip function. When validating the contents of an uploaded ZIP archive, the code iterated through the files starting from the third file (index 2), neglecting to check the first two. This oversight allowed an authenticated admin user to craft a malicious ZIP file where the second entry contained path traversal sequences (../).

When the Shopware\Core\Framework\Plugin\PluginManagementService::uploadPlugin or extractPluginZip methods are called, they use the PluginExtractor (renamed to ExtensionExtractor in the patch) to handle the file extraction. The extract method in the extractor calls the flawed validatePluginZip method. Because the validation was skipped for the initial files in the archive, the extractTo operation would proceed to write a file to a directory outside of the intended plugin directory, leading to arbitrary file write. This could be leveraged by an attacker to upload a PHP webshell and achieve remote code execution on the server.

The patch addresses the vulnerability by changing the loop in validatePluginZip to start from the first file (index 0), ensuring all files within the archive are checked for path traversal characters.

Vulnerable functions

Shopware\Core\Framework\Plugin\PluginExtractor::validatePluginZip

src/Core/Framework/Plugin/PluginExtractor.php

This private function contains the core logic of the vulnerability. It was responsible for validating the contents of a plugin ZIP file. The loop iterating over the files in the archive started at index 2, completely skipping the first two files. This allowed a malicious actor to place a file with path traversal characters (`../`) in the second entry (index 1) of the ZIP archive, which would not be validated. This allowed writing files to arbitrary locations on the filesystem.

Shopware\Core\Framework\Plugin\PluginExtractor::extract

src/Core/Framework/Plugin/PluginExtractor.php

This function orchestrates the extraction of the plugin ZIP file. It calls the vulnerable `validatePluginZip` method. An attacker exploiting the vulnerability would have this function in the call stack. The class was renamed to `ExtensionExtractor` in the patch, but the vulnerability existed under the name `PluginExtractor`.

Shopware\Core\Framework\Plugin\PluginManagementService::uploadPlugin

src/Core/Framework/Plugin/PluginManagementService.php

This is a high-level service function that handles the plugin upload process. It takes the uploaded file and passes it to the extraction process, which contains the vulnerability. This function is a likely entry point for the exploitation of the vulnerability, as it's called when a user uploads a plugin.

Shopware\Core\Framework\Plugin\PluginManagementService::extractPluginZip

src/Core/Framework/Plugin/PluginManagementService.php

This function is called during the plugin upload process and is responsible for calling the vulnerable extraction logic in `PluginExtractor::extract` (which was renamed to `ExtensionExtractor::extract` in the patch).

WAF Protection Rules

WAF Rule

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Reasoning

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2.7

Basic Information

Concerned about an active attack path?

GHSA-6wh5-mw9h-5c3w: Shopware vulnerable to path traversal via Plugin upload

Impact

Description

Applicability

Reproduction

2.7

Basic Information

Technical Details

Vulnerability IntelligenceMiggo AI

Root Cause Analysis

Vulnerable functions

WAF Protection Rules

WAF Rule

Reasoning

Vulnerability Intelligence
Miggo AI