{"id":"CVE-2024-56366","aliases":["GHSA-c6fv-7vh8-2rhr"],"url":"https://o3.security/vulnerability/CVE-2024-56366","summary":"PhpSpreadsheet vulnerable to unauthorized reflected  XSS in the Accounting.php file","details":"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 `Accounting.php` file. Using the `/vendor/phpoffice/phpspreadsheet/samples/Wizards/NumberFormat/Accounting.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.","published":"2025-01-03T17:01:09.701Z","modified":"2026-08-07T11:50:35.291958193Z","cvss":null,"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Packagist","name":"phpoffice/phpspreadsheet","fixedVersion":"3.7.0"},{"ecosystem":"Packagist","name":"phpoffice/phpspreadsheet","fixedVersion":"1.29.7"},{"ecosystem":"Packagist","name":"phpoffice/phpspreadsheet","fixedVersion":"2.1.6"},{"ecosystem":"Packagist","name":"phpoffice/phpspreadsheet","fixedVersion":"2.3.5"},{"ecosystem":"Packagist","name":"phpoffice/phpexcel","fixedVersion":null}],"fix":{"url":"https://github.com/PHPOffice/PhpSpreadsheet/commit/700a80346be269af668914172bc6f4521982d0b4","label":"PHPOffice/PhpSpreadsheet@700a803"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/56xxx/CVE-2024-56366.json"},{"type":"ADVISORY","url":"https://github.com/PHPOffice/PhpSpreadsheet/security/advisories/GHSA-c6fv-7vh8-2rhr"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2024-56366"},{"type":"FIX","url":"https://github.com/PHPOffice/PhpSpreadsheet/commit/700a80346be269af668914172bc6f4521982d0b4"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-07T11:50:35.291958193Z"}}