MSA-19-0023: Forum subscribe link contained an open redirect if forced subscription mode was enabled

by Michael Hawkins.  

If a forum's subscription mode was set to "forced subscription", the forum's subscribe link contained an open redirect.


Severity/Risk:Minor
Versions affected:3.7 to 3.7.1, 3.6 to 3.6.5, 3.5 to 3.5.7 and earlier unsupported versions
Versions fixed:3.7.2, 3.6.6 and 3.5.8
Reported by:John Couzins
Workaround:Set a different subscription mode (eg optional or auto) on forums until the patch is applied.
CVE identifier:CVE-2019-14831
Changes (master):http://git.moodle.org/gw?p=moodle.git&a=search&h=HEAD&st=commit&s=MDL-55451
Tracker issue:MDL-55451 Forum subscribe link contained an open redirect if forced subscription mode was enabled

Read more https://moodle.org/mod/forum/discuss.php?d=391037&parent=1576215