MOStlyCE before 2.4, as used in Mambo 4.6.3 and earlier, allows remote attackers to obtain sensitive information via certain requests to mambots/editors/mostlyce/jscripts/tiny_mce/filemanager/connectors/php/connector.php, which reveals the installation path in an error message.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.006
EPSS Ranking 68.3%