The WPQA Builder WordPress plugin before 5.7 which is a companion plugin to the Hilmer and Discy , does not check authorization before displaying private messages, allowing any logged in user to read other users private message using the message id, which can easily be brute forced.
[
{
"product": "WPQA Builder",
"vendor": "Unknown",
"versions": [
{
"lessThan": "5.7",
"status": "affected",
"version": "5.7",
"versionType": "custom"
}
]
}
]