VulnerabilityModified
CVE-2021-40347
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.
MEDIUM 5.4EPSS 1.19%
Does this matter?
Lower severity and a low EPSS score (1.19%). Track it; it rarely justifies an emergency change on its own.
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.
- CVSS 3.1
- 5.4 MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
- EPSS
- 1.19% probability · 66th percentile
- CISA KEV
- Not listed
- Affected
- postorius project/postorius
- Source
- cve@mitre.org
References
- https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=993746Mailing List, Third Party Advisory
- https://gitlab.com/mailman/postorius/-/commit/3d880c56b58bc26b32eac0799407d74b64b7474bPatch, Third Party Advisory
- https://gitlab.com/mailman/postorius/-/issues/531Exploit, Issue Tracking, Patch, Third Party Advisory
- https://gitlab.com/mailman/postorius/-/tagsThird Party Advisory
- https://phabricator.wikimedia.org/T289798Exploit, Patch, Third Party Advisory
- https://www.debian.org/security/2021/dsa-4970Third Party Advisory
- https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=993746Mailing List, Third Party Advisory
- https://gitlab.com/mailman/postorius/-/commit/3d880c56b58bc26b32eac0799407d74b64b7474bPatch, Third Party Advisory
- https://gitlab.com/mailman/postorius/-/issues/531Exploit, Issue Tracking, Patch, Third Party Advisory
- https://gitlab.com/mailman/postorius/-/tagsThird Party Advisory
- https://phabricator.wikimedia.org/T289798Exploit, Patch, Third Party Advisory
- https://www.debian.org/security/2021/dsa-4970Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.