Zkteco BioTime < 8.5.3 Build:20200816.447 is vulnerable to Incorrect Access Control via resign, private message, manual log, time interval, attshift, and holiday. An authenticated administrator can read local files by exploiting XSS into a pdf generator when exporting data as a PDF
https://gist.github.com/hamoshwani/fd7e3d9d9ff8896f1ccf8426dccaf97e