Update documentation/modules/exploit/multi/http/avideo_wwbnindex_unauth_rce.md

Co-authored-by: jheysel-r7 <[email protected]>

Author: Chocapikk

documentation/modules/exploit/multi/http/avideo_wwbnindex_unauth_rce.md

@@ -9,7 +9,7 @@ to execute arbitrary PHP code on the server.
 The vulnerability is present in versions from 12.4 up to 14.2.
 
 To set up a vulnerable environment for testing, follow the installation steps provided in the AVideo documentation for running with Docker:
-<https://github.com/WWBN/AVideo/wiki/Running-AVideo-with-Docker>. Ensure AVideo version installed is between 12.4 and 14.2.
+<https://github.com/WWBN/AVideo/wiki/Running-AVideo-with-Docker>. Ensure AVideo version installed is between 12.4 and 14.2 and the WWBIndex plugin is installed -  this can be done by verifying `/var/www/html/AVideo/plugin/WWBNIndex` exists.
 
 ## Verification Steps