Update wsgi.md

Author: carlospolop

src/network-services-pentesting/pentesting-web/wsgi.md

@@ -181,6 +181,16 @@ Combine `UWSGI_CHDIR` with a file-serving helper to browse sensitive directories
 - If uWSGI runs with elevated privileges and writes sockets/pids owned by root, abusing env and directory changes may help you drop files with privileged owners or manipulate runtime state.
 - Overriding configuration via environment (`UWSGI_*`) inside a file loaded through `UWSGI_FILE` can affect process model and workers to make persistence stealthier.
 
+```python
+# malicious_config.py
+import os
+
+# Override uWSGI configuration
+os.environ['UWSGI_MASTER'] = '1'
+os.environ['UWSGI_PROCESSES'] = '1'
+os.environ['UWSGI_CHEAPER'] = '1'
+```
+
 ## Reverse-proxy desync issues relevant to uWSGI chains (recent)
 
 Deployments that use Apache httpd with `mod_proxy_uwsgi` have faced recent response-splitting/desynchronization bugs that can influence the frontend↔backend translation layer: