In Mahara before 20.10.5, 21.04.4, 21.10.2, and 22.04.0, a site using Isolated Institutions is vulnerable if more than ten groups are used. They are all shown from page 2 of the group results list (rather than only being shown for the institution that the viewer is a member of).
{
"versions": [
{
"introduced": "0"
},
{
"fixed": "20.10.5"
},
{
"introduced": "21.04.0"
},
{
"fixed": "21.04.4"
},
{
"introduced": "21.10.0"
},
{
"fixed": "21.10.2"
}
]
}