Moodle is vulnerable to information disclosure attacks. When viewing comments on a blog post, there is no verification of viewing permissions. This allows attackers to read the comments that can potentially contain sensitive information.
git.moodle.org/gw?p=moodle.git&a=search&h=HEAD&st=commit&s=MDL-37245
lists.fedoraproject.org/pipermail/package-announce/2013-May/106965.html
lists.fedoraproject.org/pipermail/package-announce/2013-May/106988.html
lists.fedoraproject.org/pipermail/package-announce/2013-May/107026.html
openwall.com/lists/oss-security/2013/05/21/1
moodle.org/mod/forum/discuss.php?d=228934