Multiple cross-site request forgery (CSRF) vulnerabilities in (1) editcategories.html and (2) editcategories.php in the Glossary module in Moodle through 2.5.9, 2.6.x before 2.6.7, 2.7.x before 2.7.4, and 2.8.x before 2.8.2 allow remote attackers to hijack the authentication of unspecified victims.
https://github.com/advisories/GHSA-hhq7-jf2p-hw9c
https://moodle.org/mod/forum/discuss.php?d=278613
http://openwall.com/lists/oss-security/2015/01/19/1
http://git.moodle.org/gw?p=moodle.git&a=search&h=HEAD&st=commit&s=MDL-48106