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PYSEC-2021-319

Quick fix

PYSEC-2021-319 — postorius: upgrade to the fixed version with the command below.

pip install --upgrade 'postorius>=1.3.5'

Details

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.

Are you affected?

Enter the version of the package you're using.

Affected packages

PyPI/postorius
Introduced in: 0Fixed in: 1.3.5
Fixpip install --upgrade 'postorius>=1.3.5'

References