Vulnerability in Postorius Project
CVE-2021-40347
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N.
EPSS exploit prediction
EPSS: 0.012 (66.8th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 67th percentile — 66.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.012 · newest: 0.012 · change: 0.000
Affected products
References
- gitlab.com/mailman/postorius/-/issues/531 (Exploit, Patch, Third Party Advisory, Issue Tracking)
- phabricator.wikimedia.org/T289798 (Exploit, Patch, Third Party Advisory)
- gitlab.com/mailman/postorius/-/tags (Third Party Advisory)
- www.debian.org/security/2021/dsa-4970 (vendor-advisory, Third Party Advisory)
- gitlab.com/mailman/postorius/-/commit/3d880c56b58bc26b32eac0799407d74b64b7474b (Patch, Third Party Advisory)
- bugs.debian.org/cgi-bin/bugreport.cgi (Mailing List, Third Party Advisory)
Frequently asked questions
- What is CVE-2021-40347?
- CVE-2021-40347 is a medium-severity vulnerability in Postorius Project. CVSS score: 5.4/10. Published 2021-09-10.
- How severe is CVE-2021-40347?
- Medium severity. CVSS v3 base score is 5.4 out of 10.