Nch Software UTI Mutual fund Android has an unspecified vulnerability

Nch Software Uti Mutual Fund is an application for investing in mutual funds from Nch Software Australia. security vulnerability exists in versions of Nch Software UTI Mutual fund for Android prior to 5.4.18, which could be exploited by an attacker to forcibly enumerate user names identified by an error message returned after attempting invalid credentials error message returned after an invalid credential attempt.