An issue was discovered in views/list.py in GNU Mailman Postorius before 1.3.5. An attacker (logged into any account) can send a crafted POST request to unsubscribe any user from a mailing list, also revealing whether that address was subscribed in the first place.
{
"github_reviewed": true,
"cwe_ids": [
"CWE-284"
],
"github_reviewed_at": "2024-04-22T22:50:22Z",
"nvd_published_at": "2021-09-10T19:15:00Z",
"severity": "MODERATE"
}