CVE-2024-45046 | BDVDB-2026-246939 Detail

Description#

PHPSpreadsheet is a pure PHP library for reading and writing spreadsheet files. In affected versions `\PhpOffice\PhpSpreadsheet\Writer\Html` doesn't sanitize spreadsheet styling information such as font names, allowing an attacker to inject arbitrary JavaScript on the page. As a result an attacker may used a crafted spreadsheet to fully takeover a session of a user viewing spreadsheet files as HTML. This issue has been addressed in release version 2.1.0. All users are advised to upgrade. There are no known workarounds for this vulnerability.

Impact#

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Exploit#

History#

1. Version 12024-08-28Record published in the CVE List.
2. Version 22024-08-29Most recent update recorded in the CVE List.