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Status published
High
CVE-2024-56408
PhpSpreadsheet allows unauthorized reflected XSS in `Convert-Online.php` file
Vulnerability Description
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 have no sanitization in the `/vendor/phpoffice/phpspreadsheet/samples/Engineering/Convert-Online.php` file, which leads to the possibility of 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.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
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Credits & Attribution
No credits recorded in the NVD database.
References
- https://github.com/PHPOffice/PhpSpreadsheet/security/advisories/GHSA-x88g-h956-m5xg
- https://github.com/PHPOffice/PhpSpreadsheet/commit/700a80346be269af668914172bc6f4521982d0b4
- https://github.com/PHPOffice/PhpSpreadsheet/commit/9b9a55c7154daa7cd4095f618933c240508ba3c1
- https://github.com/PHPOffice/PhpSpreadsheet/commit/a50ebfe118b3ae0ddaea1c48ac19dc38692f4abc
- https://github.com/PHPOffice/PhpSpreadsheet/commit/b8fac55aa5cb7a3d514c7308378bb37bb711b25e
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Affected Vendor
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View all reports →Affected Software
PhpSpreadsheet
Vulnerable Versions:
>= 3.0.0, < 3.7.0, < 1.29.7, >= 2.0.0, < 2.1.6, >= 2.2.0, < 2.3.5
Timeline
Official Publish:
January 3rd, 2025
Last Modified:
May 20th, 2025
Added to House:
July 22nd, 2026