Server file disclosure via unfiltered MathML entities
Published May 30, 2025 · Updated May 30, 2025
XXE in PHPOffice Math before 0.3.0 allows remote attackers to read local server files through crafted MathML input. The MathML reader passes untrusted XML to DOMDocument::loadXML with LIBXML_DTDLOAD, causing libxml to resolve attacker-defined external entities without filtering. Exploitation requires an application to process attacker-controlled MathML; the demonstrated payload exfiltrates server file contents over HTTP.
Summary
What happened
XXE in PHPOffice Math before 0.3.0 allows remote attackers to read local server files through crafted MathML input. The MathML reader passes untrusted XML to DOMDocument::loadXML with LIBXML_DTDLOAD, causing libxml to resolve attacker-defined external entities without filtering. Exploitation requires an application to process attacker-controlled MathML; the demonstrated payload exfiltrates server file contents over HTTP.
The record
- CVE
- CVE-2025-48882
- Published
- May 30, 2025
- Updated
- May 30, 2025
- Vendor
- PHPOffice
- Product
- Math
- Classifications
- CWE-611, T1005
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- May 30, 2025CVE publishedPublication date reported by the CVE source.
- May 30, 2025Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=< 0.3.0
What conditions does exploitation require?
What is affected?
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
- MathML XXE proof of conceptproof of concept · demonstrated
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Technologies
Your stack
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Your stack
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