CVE-2022-39356

HIGH

Discourse < 2.8.10 - Unauthenticated Account Takeover via Unscoped Invitation Link

Title source: llm
STIX 2.1

Description

Discourse is a platform for community discussion. Users who receive an invitation link that is not scoped to a single email address can enter any non-admin user's email and gain access to their account when accepting the invitation. All users should upgrade to the latest version. A workaround is temporarily disabling invitations with `SiteSetting.max_invites_per_day = 0` or scope them to individual email addresses.

References (2)

Core 2

Scores

CVSS v3 8.9
EPSS 0.0032
EPSS Percentile 55.4%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:L

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact total

Details

CWE
CWE-285
Status published
Products (2)
discourse/discourse 2.9.0 beta1 (10 CPE variants)
discourse/discourse < 2.8.10
Published Nov 02, 2022
Tracked Since Feb 18, 2026