MantisBT is an open source bug tracker. Due to insufficient access-level checks on the Wiki redirection page, any user can reveal private Projects' names, by accessing wiki.php with sequentially incremented IDs. This issue has been addressed in commit 65c44883f
which has been included in release 2.258
. Users are advised to upgrade. Users unable to upgrade should disable wiki integration ( $g_wiki_enable = OFF;
).