Discourse through 2.8.7 allows admins to send invitations to arbitrary email addresses at an unlimited rate.
https://www.enisa.europa.eu/topics/threat-risk-management/vulnerability-disclosure
https://github.com/discourse/discourse/tags
https://github.com/discourse/discourse/security/advisories/GHSA-q2rg-m477-8wg7
Source: Mitre, NVD
Published: 2022-09-02
Updated: 2026-06-17
Base Score: 8.3
Vector: CVSS2#AV:N/AC:L/Au:M/C:C/I:C/A:C
Severity: High
Base Score: 7.2
Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
EPSS: 0.00103