Upgrade to version 1.2.3 or higher, as it has been reported to fix this vulnerability. An upgrade is required as there are no known workarounds.
Vendor URL: http://www.rsbac.org/
Secunia Advisory ID:11986
Related OSVDB ID: 7342
Other Advisory URL: http://www.rsbac.org/download/code/v1.2.3/changes-v1.2.3.txt