GHSA-mvf6-3f2g-xfxf: 
PHP vulnerability analysis and mitigation

A security vulnerability was identified in endroid/qr-code-bundle versions prior to 3.4.2, involving improper handling of the logopath query parameter. The vulnerability was disclosed on January 1, 2020, and affects the PHP package endroid/qr-code-bundle. This moderate severity issue allows potential disclosure of files through manipulation of the logopath parameter (GitHub Advisory).

The vulnerability stems from improper handling of non-image data as the logo in the QR code bundle. The issue was specifically related to the logo_path query parameter implementation, which failed to properly validate the mime type of uploaded files. This security flaw was assigned the identifier GHSA-mvf6-3f2g-xfxf and is categorized as CWE-200. The vulnerability was patched in version 3.4.2 by implementing proper mime type checking (GitHub Advisory).

The vulnerability could lead to unintended file disclosure, potentially exposing sensitive information on affected systems. This security issue allows attackers to access files through the manipulation of the logo_path parameter (GitHub Advisory).

Users are advised to upgrade to endroid/qr-code-bundle version 3.4.2 or later, which includes the security fix. The patch implements proper mime type checking for the logo functionality (QR Bundle Release, Security Fix Commit).