Security Advisory

CVE-2024-45046

CVE vulnerability detail — eXtreme Datacenter Security Operations

Published 2024-08-28 20:41:23

Last updated 2024-08-29 13:11:25

Assigner GitHub_M

State PUBLISHED

Description

PHPSpreadsheet is a pure PHP library for reading and writing spreadsheet files. In affected versions `PhpOfficePhpSpreadsheetWriterHtml` doesnt 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.

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