baserCMS is a website development framework. Prior to version 5.2.3, a path traversal vulnerability exists in the theme file management API (/baser/api/admin/bc-theme-file/theme_files/add.json) that allows arbitrary file write. An authenticated administrator can include ../ sequences in the path parameter to create a PHP file in an arbitrary directory outside the theme directory, which may result in remote code execution (RCE). This issue has been patched in version 5.2.3.
| Vendor | Product | Versions |
|---|---|---|
| baserproject | basercms | < 5.2.3 |
Updated severity to CRITICAL, marked as actively exploited, and specified the patch available as version 5.2.3.
Initial creation
