In Cacti through 1.2.6, authenticated users may bypass authorization checks (for viewing a graph) via a direct graphjson.php request with a modified localgraph_id parameter.
{ "binaries": [ { "binary_name": "cacti", "binary_version": "0.8.8b+dfsg-5ubuntu0.2+esm2" } ] }
{ "binaries": [ { "binary_name": "cacti", "binary_version": "1.1.38+ds1-1ubuntu0.1~esm4" } ] }