GHSA-vrf2-xghr-j52v: 
PHP 脆弱性の分析と軽減

A high-severity vulnerability (CVE-2021-32717) was discovered in Shopware, an open source eCommerce platform, affecting versions prior to 6.4.1.1. The vulnerability allows private files to become publicly accessible with Cloud Storage providers when the hashed URL is known. This security issue was disclosed on June 24, 2021, and primarily affects the Shopware platform and core components (GitHub Advisory).

The vulnerability has been assigned a CVSS v3.1 base score of 7.5 (High), with the vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N. This indicates that the vulnerability can be exploited over the network, requires low attack complexity, needs no privileges or user interaction, and primarily impacts confidentiality. The vulnerability has been classified under CWE-200 (Exposure of Sensitive Information to an Unauthorized Actor) and CWE-732 (Incorrect Permission Assignment for Critical Resource) (NVD).

The vulnerability exposes private files stored in Cloud Storage providers to unauthorized access when the hashed URL is known. This could lead to the exposure of sensitive information stored in private files (GitHub Advisory).

Several mitigation options are available: 1) Update to Shopware version 6.4.1.1 or later, 2) Configure correct visibility settings according to documentation, ensuring visibility is at the same level as type, 3) For Amazon AWS users, disable public access to the bucket containing private files, 4) Install or update the Security plugin and run the command './bin/console s3:set-visibility' to correct cloud file visibilities (GitHub Advisory).