Auth bypass in Discourse
CVE-2022-31025
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 2.6 (Low). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:N/I:L/A:N.
EPSS exploit prediction
EPSS: 0.010 (60.2th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 60th percentile — 60.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.010 · newest: 0.010 · change: 0.000
Affected products
- Discourse — versions >= 2.9.0.beta1, <= 2.9.0.beta4, 2.9.0, < 2.8.4
Weakness classification (CWE)
References
- github.com/discourse/discourse/security/advisories/GHSA-x7jh-mx5q-6f9q (Third Party Advisory)
- github.com/discourse/discourse/pull/16974 (Patch, Third Party Advisory)
- github.com/discourse/discourse/pull/16984 (Patch, Third Party Advisory)
- github.com/discourse/discourse/commit/0fa0094531efc82d9371f90a02aa804b176d59cf (Patch, Third Party Advisory)
- github.com/discourse/discourse/commit/7c4e2d33fa4b922354c177ffc880a2f2701a91f9 (Patch, Third Party Advisory)
Frequently asked questions
- What is CVE-2022-31025?
- CVE-2022-31025 is a low-severity vulnerability in Discourse, classified under Improper Authorization. CVSS score: 2.6/10. Published 2022-06-07.
- How severe is CVE-2022-31025?
- Low severity. CVSS v3 base score is 2.6 out of 10.