EUVD-2026-24153

October CMS has Safe Mode Bypass via CSS Preprocessor Compilers...

GHSA-3888-Q23F-X7QH October CMS has Safe Mode Bypass via CSS Preprocessor Compilers

A server-side information disclosure vulnerability was identified in the handling of CSS preprocessor files. Backend users with Editor permissions could craft .less, .sass, or .scss files that leverage the compiler's import functionality to read arbitrary files from the server. This worked even...

CVE-2026-26067

CVE-2026-26067 affects October CMS prior to versions 3.7.14 and 4.1.10. A server-side information disclosure flaw exists in handling CSS preprocessor files (LESS/SASS/SCSS) through the compiler import function, allowing backend users with Editor permissions to read arbitrary server files. The iss...

CVE-2026-26067 October: Safe Mode Bypass via CSS Preprocessor Compilers

October is a Content Management System CMS and web platform. Prior to 3.7.14 and 4.1.10, a server-side information disclosure vulnerability was identified in the handling of CSS preprocessor files. Backend users with Editor permissions could craft .less, .sass, or .scss files that leverage the...

CVE-2026-26067 October: Safe Mode Bypass via CSS Preprocessor Compilers

October is a Content Management System CMS and web platform. Prior to 3.7.14 and 4.1.10, a server-side information disclosure vulnerability was identified in the handling of CSS preprocessor files. Backend users with Editor permissions could craft .less, .sass, or .scss files that leverage the...

October 安全漏洞

October is an open-source content management system CMS and network platform developed by October. Versions prior to October 3.7.14 and 4.1.10 contained security vulnerabilities. These vulnerabilities were caused by improper handling of CSS preprocessor files, which could allow backend users with...