Invite bypasses user approval in Discourse
Vulnerability Description
Discourse is an open source platform for community discussion. Prior to version 2.8.4 on the `stable` branch and 2.9.0beta5 on the `beta` and `tests-passed` branches, inviting users on sites that use single sign-on could bypass the `must_approve_users` check and invites by staff are always approved automatically. The issue is patched in Discourse version 2.8.4 on the `stable` branch and version `2.9.0.beta5` on the `beta` and `tests-passed` branches. As a workaround, disable invites or increase `min_trust_level_to_allow_invite` to reduce the attack surface to more trusted users.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
Am I Vulnerable?
Launch our assessment wizard to check if your infrastructure is exposed to • CVE-2022-31025
Credits & Attribution
No credits recorded in the NVD database.
References
- https://github.com/discourse/discourse/security/advisories/GHSA-x7jh-mx5q-6f9q
- https://github.com/discourse/discourse/pull/16974
- https://github.com/discourse/discourse/pull/16984
- https://github.com/discourse/discourse/commit/0fa0094531efc82d9371f90a02aa804b176d59cf
- https://github.com/discourse/discourse/commit/7c4e2d33fa4b922354c177ffc880a2f2701a91f9
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