CVE-2024-45290 Information

Description

PHPSpreadsheet is a pure PHP library for reading and writing spreadsheet files. It’s possible for an attacker to construct an XLSX file which links media from external URLs. When opening the XLSX file PhpSpreadsheet retrieves the image size and type by reading the file contents if the provided path is a URL. By using specially crafted php://filter URLs an attacker can leak the contents of any file or URL. Note that this vulnerability is different from GHSA-w9xv-qf98-ccq4 and resides in a different component. An attacker can access any file on the server or leak information form arbitrary URLs potentially exposing sensitive information such as AWS IAM credentials. This issue has been addressed in release versions 1.29.2 2.1.1 and 2.3.0. All users are advised to upgrade. There are no known workarounds for this vulnerability.

Reference

https://github.com/PHPOffice/PhpSpreadsheet/security/advisories/GHSA-5gpr-w2p5-6m37 https://github.com/PHPOffice/PhpSpreadsheet/security/advisories/GHSA-w9xv-qf98-ccq4