GHSA-qv4m-m73m-8hj7

#### Summary An authenticated user with the HR "Manage Employees" permission (`SA_EMPLOYEE`) can upload a file with an arbitrary extension through the employee **Documents** tab. The handler writes the raw client-supplied filename — extension intact — into a web served directory with no extension, MIME, or content validation, so a `.php` file is stored under the web root and executes as code, yielding remote code execution on the server. #### Details The document-upload branch in `hrm/manage/employees.php` (function `tab_documents()`) moves the uploaded file using the client filename verbatim: ```php // hrm/manage/employees.php -> tab_documents() (HEAD lines 597-602; release 1.0.0 lines 568-573) $upload_dir = company_path().'/documents/employees'; if (!file_exists($upload_dir)) mkdir($upload_dir, 0777, true); $file_path = $upload_dir.'/'.$employee_id.'_'.time().'_'.$_FILES['doc_file']['name']; if (!move_uploaded_file($_FILES['doc_file']['tmp_name'], $file_path)) { ... } ``` There is **no** extension allow-list, `getimagesize()`, MIME check, or content inspection on this path. Contrast this with the profile photo (`pic`) upload in the *same file*, which validates image type/extension/size, and with core `includes/ui/attachment.inc`, which deliberately generates a random extension-less name (`uniqid()`) with a comment warning that client filenames must never be trusted. The document handler ignores that established safe pattern. Reachability of the written file: - `company_path()` resolves under the web root; `config.default.php` sets `$comp_path = $path_to_root.'/company'`, so uploads land in `company/0/documents/employees/`. - The only `.htaccess` in the project is the repo-root one, which denies `.inc/.po/.sh/.pem/.sql/.log` only — it does **not** block `.php` and does **not** cover `company/`. - The stored path is then echoed **unescaped** into a clickable "View" link (`hrm/includes/ui/employee_ui.inc` lines 153-154 — `file_path` concatenated straig