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CVE-2014-2054: PHPExcel vulnerable to XXE attacks through libxml

May 17, 2022 (updated March 31, 2025)

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

  • github.com/PHPOffice/PHPExcel
  • github.com/PHPOffice/PHPExcel/blob/2b601574975acfb9d4378a788ed5f2b747958095/changelog.txt
  • github.com/PHPOffice/PHPExcel/blob/develop/changelog.txt
  • github.com/PHPOffice/PHPExcel/commit/e04bf7ed091b0a72d028eacf26d770b485d4e897
  • github.com/advisories/GHSA-28rm-rj57-qjpv
  • nvd.nist.gov/vuln/detail/CVE-2014-2054

Code Behaviors & Features

Detect and mitigate CVE-2014-2054 with GitLab Dependency Scanning

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Affected versions

All versions before 1.8.0

Fixed versions

  • 1.8.0

Solution

Upgrade to version 1.8.0 or above.

Impact 7.5 HIGH

AV:N/AC:L/Au:N/C:P/I:P/A:P

Learn more about CVSS

Weakness

  • CWE-611: Improper Restriction of XML External Entity Reference

Source file

packagist/phpoffice/phpexcel/CVE-2014-2054.yml

Spotted a mistake? Edit the file on GitLab.

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