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VULNERABILITIES

CVE-2021-40347 Details

Description

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.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:5.4 MEDIUMVector:CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

References to Advisories, Solutions, and Tools

By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.

URLSource(s)Tag(s)
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=993746 CVEMailing ListThird Party Advisory
https://gitlab.com/mailman/postorius/-/commit/3d880c56b58bc26b32eac0799407d74b64b7474b CVEPatchThird Party Advisory
https://gitlab.com/mailman/postorius/-/issues/531 CVEExploitIssue TrackingPatchThird Party Advisory
https://gitlab.com/mailman/postorius/-/tags CVEThird Party Advisory
https://phabricator.wikimedia.org/T289798 CVEExploitPatchThird Party Advisory

see all 12 references

Weakness Enumeration

CWE-IDCWE NameSource
NVD-CWE-noinfoInsufficient Information to Classify Weakness[email protected]

Affected Products

ProductVersions
postorius project postorius
< 1.3.5

CPE

  • cpe:2.3:a:postorius_project:postorius:*:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.

Change History

4 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2021-40347
NVD Published Date:
Sep 10, 2021
NVD Last Modified:
Jun 17, 2026
Source:
[email protected]
CVE-2021-40347 Details - Not Deferred