CVE-2025-48882: Phpoffice Math

High severity, CVSS 8.7. EPSS: 0.5% chance of exploitation in the next 30 days.

PHPOffice Math is a library that provides a set of classes to manipulate different formula file formats. Prior to version 0.3.0, loading XML data using the standard `libxml` extension and the `LIBXML_DTDLOAD` flag without additional filtration, leads to XXE. Version 0.3.0 fixes the vulnerability.

Affected products

• Phpoffice Math: before 0.3.0 (fixed in 0.3.0)

Published 2025-05-30. Last modified 2026-06-17.