MantisBT 1.2.18 Released

MantisBT 1.2.18 is an important security update for the stable 1.2.x branch.
All installations that are currently running any 1.2.x version are strongly
advised to upgrade to this release. Download it from here.

This release resolves a total of 43 issues, including fixes for 23 security-
related bugs and vulnerabilities:

Please refer to the changelog on the MantisBT web site for complete details
on each of these issues.

We would like to thank the following individuals and organizations for their
valued contribution in discovering and fixing these issues, in no particular
order: Mati Aharoni from Offensive Security and their bug bounty program,
Matthias Karlsson, Matthew Daley, Egidio Romano, Florian Fuchs, Shahee Mirza,
Oleg K, Alejo Popovici, Edwin Gozeling, Paul Richards, Roland Becker,
Victor Boctor and Damien Regad.