Information Exposure Affecting postorius package, versions [0,1.3.5)


Severity

Recommended
0.0
medium
0
10

CVSS assessment made by Snyk's Security Team. Learn more

Threat Intelligence

Exploit Maturity
Proof of concept
EPSS
0.12% (47th percentile)

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  • Snyk IDSNYK-PYTHON-POSTORIUS-1584199
  • published12 Sept 2021
  • disclosed12 Sept 2021
  • creditKevin Israel

Introduced: 12 Sep 2021

CVE-2021-40347  (opens in a new tab)
CWE-200  (opens in a new tab)

How to fix?

Upgrade postorius to version 1.3.5 or higher.

Overview

postorius is an A web user interface for GNU Mailman

Affected versions of this package are vulnerable to Information Exposure via the views/list.py file. 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.

CVSS Scores

version 3.1