PHPOffice PhpSpreadsheet up to 1.29.6/2.1.5/2.3.4/3.6.x download.php Downloader cross site scripting

Summaryinfo

A vulnerability was found in PHPOffice PhpSpreadsheet up to 1.29.6/2.1.5/2.3.4/3.6.x and classified as problematic. Affected is the function Downloader of the file /vendor/phpoffice/phpspreadsheet/samples/download.php. Such manipulation leads to cross site scripting. This vulnerability is listed as CVE-2024-56365. The attack may be performed from remote. There is no available exploit. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in PHPOffice PhpSpreadsheet up to 1.29.6/2.1.5/2.3.4/3.6.x. It has been rated as problematic. Affected by this issue is the function Downloader of the file /vendor/phpoffice/phpspreadsheet/samples/download.php. The manipulation with an unknown input leads to a cross site scripting vulnerability. Using CWE to declare the problem leads to CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. Impacted is integrity. CVE summarizes:

PhpSpreadsheet is a PHP library for reading and writing spreadsheet files. Versions prior to 3.7.0, 2.3.5, 2.1.6, and 1.29.7 are vulnerable to unauthorized reflected cross-site scripting in the constructor of the `Downloader` class. Using the `/vendor/phpoffice/phpspreadsheet/samples/download.php` script, an attacker can perform a cross-site scripting attack. Versions 3.7.0, 2.3.5, 2.1.6, and 1.29.7 contain a patch for the issue.

The advisory is shared for download at github.com. This vulnerability is handled as CVE-2024-56365 since 12/20/2024. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. Successful exploitation requires user interaction by the victim. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1059.007.

By approaching the search of inurl:vendor/phpoffice/phpspreadsheet/samples/download.php it is possible to find vulnerable targets with Google Hacking.

Upgrading to version 1.29.7, 2.1.6, 2.3.5 or 3.7.0 eliminates this vulnerability. Applying the patch 700a80346be269af668914172bc6f4521982d0b4 is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

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Productinfo

Vendor

• PHPOffice

Name

• PhpSpreadsheet

Version

• 1.29.0
• 1.29.1
• 1.29.2
• 1.29.3
• 1.29.4
• 1.29.5
• 1.29.6
• 2.1.0
• 2.1.1
• 2.1.2
• 2.1.3
• 2.1.4
• 2.1.5
• 2.3.0
• 2.3.1
• 2.3.2
• 2.3.3
• 2.3.4
• 3.0
• 3.1
• 3.2
• 3.3
• 3.4
• 3.5
• 3.6

License

• open-source

Website

• Product: https://github.com/PHPOffice/PhpSpreadsheet/

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