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GHSA-28rm-rj57-qjpvmedium

PHPExcel vulnerable to XXE attacks through libxml

Impact

PHPExcel before 1.8.0, as used in ownCloud Server before 5.0.15 and 6.0.x before 6.0.2, does not disable external entity loading in libxml, which allows remote attackers to read arbitrary files, cause a denial of service, or possibly have other impact via an XML External Entity (XXE) attack.

Source excerpt · OSV

Affected packages

Start with the recorded fix for your release branch. Check your installed version and test compatibility before upgrading. Fixing this advisory does not rule out other vulnerabilities in the release.

phpoffice/phpexcel Packagist
Affected rangeRecorded fix
Earlier releases before 1.8.0Ecosystem versions1.8.0

Version evidence: OSV · GHSA-28rm-rj57-qjpv

View original version evidence (6 explicit versions)

Original source description

PHPExcel before 1.8.0, as used in ownCloud Server before 5.0.15 and 6.0.x before 6.0.2, does not disable external entity loading in libxml, which allows remote attackers to read arbitrary files, cause a denial of service, or possibly have other impact via an XML External Entity (XXE) attack.

References