MantisBT 1.2.17 is a 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.
A SQL injection vulnerability (CVE-2014-2238) in adm_config_report.php was patched. Refer to issue #17055 for detailed information.
This release also includes a few bug fixes for the tracker, including News API correction for the regression issue #16940 introduced in 1.2.16, as well as updated translations in many languages.
See full changelog for more details and download from official site.