CVE-2023-44381: 
PHP vulnerability analysis and mitigation

CVE-2023-44381 affects October CMS, a Content Management System and web platform for development workflow. The vulnerability was discovered and disclosed on November 29, 2023, and was patched in version 3.4.15. The issue affects all versions greater than 3.0 up to (excluding) version 3.4.15 (GitHub Advisory).

The vulnerability is classified as a safe mode bypass vulnerability that allows authenticated users with specific permissions (editor.cmspages, editor.cmslayouts, or editor.cmspartials) to execute PHP code despite cms.safemode being enabled. The CVSS v3.1 score is 4.9 (Medium) with the vector string CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N, indicating network accessibility, low attack complexity, high privileges required, no user interaction needed, unchanged scope, no impact on confidentiality, high impact on integrity, and no impact on availability (NVD).

The vulnerability allows authenticated users to bypass the CMS safe mode restrictions and execute arbitrary PHP code through the CMS template. This is particularly concerning for organizations relying on cms.safe_mode to prevent trusted users with specific editing permissions from executing arbitrary PHP code in production environments (GitHub Advisory).

The vulnerability has been patched in October CMS version 3.4.15. For users unable to update immediately, the recommended workaround is to remove the specified permissions (editor.cmspages, editor.cmslayouts, or editor.cms_partials) from untrusted users (GitHub Advisory).