CVEvulnerability
CVE-2022-21684
8.8 HIGH
Official page ↗
- Status
- Modified
- Published
- 2022-01-13
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 4.3 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
- CVSS 3.1 ([email protected])
- 8.8 HIGH — CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- CVSS 2.0 ([email protected])
- 6.0 MEDIUM — AV:N/AC:M/Au:S/C:P/I:P/A:P
- Weaknesses
- CWE-287
Description
Discourse is an open source discussion platform. Versions prior to 2.7.13 in `stable`, 2.8.0.beta11 in `beta`, and 2.8.0.beta11 in `tests-passed` allow some users to log in to a community before they should be able to do so. A user invited via email to a forum with `must_approve_users` enabled is going to be automatically logged in, bypassing the check that does not allow unapproved users to sign in. They will be able to do everything an approved user can do. If they logout, they cannot log back in. This issue is patched in the `stable` version 2.7.13, `beta` version 2.8.0.beta11, and `tests-passed` version 2.8.0.beta11. One may disable invites as a workaround. Administrators can increase `min_trust_level_to_allow_invite` to reduce the attack surface to more trusted users.
Affected configurations
• discourse discourse (< 2.7.13)
• discourse discourse 2.8.0
Related
Weakness · CWE (1)
- CWE-287 Improper Authentication weakness
References
- https://github.com/discourse/discourse/commit/584c6a2e8bc705072b09a9c4b55126d6f8ed4ad2 Patch, Third Party Advisory
- https://github.com/discourse/discourse/security/advisories/GHSA-p63q-jp48-h8xh Patch, Third Party Advisory
- https://meta.discourse.org/t/invite-redemption-allowed-user-to-access-forum-before-approval/214328 Issue Tracking, Patch, Vendor Advisory
- https://github.com/discourse/discourse/commit/584c6a2e8bc705072b09a9c4b55126d6f8ed4ad2 Patch, Third Party Advisory
- https://github.com/discourse/discourse/security/advisories/GHSA-p63q-jp48-h8xh Patch, Third Party Advisory
- https://meta.discourse.org/t/invite-redemption-allowed-user-to-access-forum-before-approval/214328 Issue Tracking, Patch, Vendor Advisory