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CVE-2023-48648: Concrete CMS allows unauthorized access because directories can be created with insecure permissions

November 17, 2023

Concrete CMS before 8.5.13 and 9.x before 9.2.2 allows unauthorized access because directories can be created with insecure permissions. File creation functions (such as the Mkdir() function) gives universal access (0777) to created folders by default. Excessive permissions can be granted when creating a directory with permissions greater than 0755 or when the permissions argument is not specified.

References

  • documentation.concretecms.org/developers/introduction/version-history/8513-release-notes
  • documentation.concretecms.org/developers/introduction/version-history/922-release-notes
  • github.com/advisories/GHSA-m87h-jxr6-f82w
  • github.com/concretecms/concretecms/commit/707b974826b761dda5c0baaf345c8582157d9307
  • github.com/concretecms/concretecms/commit/eb882681a0ed19798a8f689d257af8dfe2f3a279
  • github.com/concretecms/concretecms/pull/11677
  • nvd.nist.gov/vuln/detail/CVE-2023-48648
  • www.concretecms.org/about/project-news/security/2023-11-09-security-blog-about-updated-cves-and-new-release

Code Behaviors & Features

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Affected versions

All versions before 8.5.13, all versions starting from 9.0.0 before 9.2.2

Fixed versions

  • 8.5.13
  • 9.2.2

Solution

Upgrade to versions 8.5.13, 9.2.2 or above.

Source file

packagist/concrete5/concrete5/CVE-2023-48648.yml

Spotted a mistake? Edit the file on GitLab.

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