An issue was discovered in Mattermost Server before 4.2.0, 4.1.1, and 4.0.5. It allows attackers to obtain sensitive information (user statuses) via a REST API version 4 endpoint.
{
"versions": [
{
"introduced": "0"
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{
"fixed": "4.0.5"
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{
"introduced": "4.1.0"
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{
"fixed": "4.1.1"
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{
"introduced": "0"
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{
"last_affected": "4.2.0-rc1"
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{
"introduced": "0"
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{
"last_affected": "4.2.0-rc2"
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{
"introduced": "0"
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{
"last_affected": "4.2.0-rc3"
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{
"introduced": "0"
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{
"last_affected": "4.2.0-rc4"
}
]
}