| Package | Affected versions | Patched versions |
|---|---|---|
| postorius | < 1.3.5 | 1.3.5 |
| postorius | < 1.3.5 | 1.3.5 |
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.
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