WordPress <= 6.9.1 - Authenticated (Author+) XML External Entity Injection via getID3 Library Media Upload
| CVSS | 6.5 (Medium) |
|---|---|
| Publicly Published | March 10, 2026 |
| Last Updated | March 10, 2026 |
| Researcher |
Youssef Achtatal
|
Description
WordPress core is vulnerable to XML External Entity (XXE) Injection via the bundled getID3 library in all versions up to and including 6.9.1. This is due to the `GETID3_LIBXML_OPTIONS` constant including the `LIBXML_NOENT` flag, which enables XML entity substitution during parsing. When WordPress processes media files containing XML metadata (specifically iXML chunks in WAV/RIFF/AVI files), the getID3 library parses the XML with entity substitution enabled, allowing local file disclosure via `file://` protocol URIs. This may make it possible for authenticated attackers with Author-level access to read arbitrary files from the server.
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Vulnerability Details for WordPress
| Software Type | Core |
|---|---|
| Patched? | Yes |
| Remediation | Update to one of the following versions, or a newer patched version: 6.8.4, 6.9.2 |
| Affected Versions |
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| Patched Versions |
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