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Status published
Medium
CVE-2021-40347
An issue was discovered in views/list.py in GNU Mailman Postorius...
Vulnerability 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.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
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Credits & Attribution
No credits recorded in the NVD database.
References
- https://gitlab.com/mailman/postorius/-/issues/531
- https://phabricator.wikimedia.org/T289798
- https://gitlab.com/mailman/postorius/-/tags
- https://www.debian.org/security/2021/dsa-4970
- https://gitlab.com/mailman/postorius/-/commit/3d880c56b58bc26b32eac0799407d74b64b7474b
- https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=993746
Affected Vendor
postorius project
View all reports →Affected Software
postorius
Vulnerable Versions:
0
Timeline
Official Publish:
September 10th, 2021
Last Modified:
August 4th, 2024
Added to House:
July 21st, 2026
CVSS Vectors
V3:
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
Weaknesses (CWE)
No CWE data available
MITRE ATT&CK TTPs
No associated TTPs found for this vulnerability.