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  5. CVE-2018-19277

CVE-2018-19277: XXE in PHPSpreadsheet due to encoding issue

November 20, 2019 (updated March 6, 2025)

securityScan() in PHPOffice PhpSpreadsheet through 1.5.0 allows a bypass of protection mechanisms for XXE via UTF-7 encoding in a .xlsx file

References

  • github.com/FriendsOfPHP/security-advisories/blob/master/phpoffice/phpspreadsheet/CVE-2018-19277.yaml
  • github.com/MewesK/TwigSpreadsheetBundle/issues/18
  • github.com/PHPOffice/PHPExcel/commit/2b601574975acfb9d4378a788ed5f2b747958095
  • github.com/PHPOffice/PHPExcel/commits/1.8.2
  • github.com/PHPOffice/PhpSpreadsheet
  • github.com/PHPOffice/PhpSpreadsheet/commit/0f8f071e24ee8b114d894ac172f77dc250e5bfa4
  • github.com/PHPOffice/PhpSpreadsheet/issues/771
  • github.com/PHPOffice/PhpSpreadsheet/pull/780
  • github.com/PHPOffice/PhpSpreadsheet/releases/tag/1.5.1
  • github.com/advisories/GHSA-xcrg-29h7-h4cj
  • nvd.nist.gov/vuln/detail/CVE-2018-19277
  • www.bishopfox.com/news/2018/11/phpoffice-versions
  • www.drupal.org/sa-contrib-2021-043

Code Behaviors & Features

Detect and mitigate CVE-2018-19277 with GitLab Dependency Scanning

Secure your software supply chain by verifying that all open source dependencies used in your projects contain no disclosed vulnerabilities. Dependency Scanning using SBOM also detects vulnerabilities from proprietary advisories that this site does not include. Learn more about Dependency Scanning using SBOM →

Affected versions

All versions before 1.8.2

Fixed versions

  • 1.8.2

Solution

Upgrade to version 1.8.2 or above.

Impact 8.8 HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Learn more about CVSS

Weakness

  • CWE-91: XML Injection (aka Blind XPath Injection)

Source file

packagist/phpoffice/phpexcel/CVE-2018-19277.yml

Spotted a mistake? Edit the file on GitLab.

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