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CVE-2016-6893

Published: 2 September 2016

Cross-site request forgery (CSRF) vulnerability in the user options page in GNU Mailman 2.1.x before 2.1.23 allows remote attackers to hijack the authentication of arbitrary users for requests that modify an option, as demonstrated by gaining access to the credentials of a victim's account.

Priority

Medium

Cvss 3 Severity Score

8.8

Score breakdown

Status

Package Release Status
mailman
Launchpad, Ubuntu, Debian
precise
Released (1:2.1.14-3ubuntu0.4)
trusty
Released (1:2.1.16-2ubuntu0.2)
upstream Needs triage

xenial
Released (1:2.1.20-1ubuntu0.1)
yakkety
Released (1:2.1.22-1ubuntu0.1)
Patches:
upstream: http://bazaar.launchpad.net/~mailman-coders/mailman/2.1/revision/1668
upstream: https://mail.python.org/pipermail/mailman-announce/2016-August/000226.html

Severity score breakdown

Parameter Value
Base score 8.8
Attack vector Network
Attack complexity Low
Privileges required None
User interaction Required
Scope Unchanged
Confidentiality High
Integrity impact High
Availability impact High
Vector CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H