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CVE-2025-48882

PHPOffice Math allows XXE when processing an XML file in the MathML format

HIGH

8.7

CVSS Score

Published: May 30, 2025 at 07:43 PM UTC

Updated: June 17, 2026 at 09:30 AM UTC

1 product affected across 1 vendorMath

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Severity

HIGH8.7

Exploit prediction

EPSS 0.5%

SSVC

PoC

Description

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

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Math · Phpoffice

60%

v < 0.3.0

Affected range stops below 0.3.0, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (2)

x_refsource_MISC

Source: [email protected]

https://github.com/PHPOffice/Math/commit/fc31c8f57a7a81f962cbf389fd89f4d9d06fc99a

x_refsource_CONFIRM

Source: [email protected]

https://github.com/PHPOffice/Math/security/advisories/GHSA-42hm-pq2f-3r7m

SSVC — Action Prioritization

SSVCPoCNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

8.7HIGHGitHub_M

Vector?

Quick Info

StatusDEFERRED

CWE

CWE-611

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