Resource exhaustion in Discourse
CVE-2023-28107
Discourse is an open-source discussion platform. Prior to version 3.0.2 of the `stable` branch and version 3.1.0.beta3 of the `beta` and `tests-passed` branches, a user logged as an administrator can request backups multiple times, which will eat up all the connections to the DB. If this is done on a site using multisite, then it can affect the whole cluster. The vulnerability is patched in version 3.0.2 of the `stable` branch and version 3.1.0.beta3 of the `beta` and `tests-passed` branches. There are no known workarounds.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.007 (49.5th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 49th percentile — 49.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.007 · newest: 0.007 · change: 0.000
Affected products
- Discourse — versions tests-passed < 3.1.0.beta3, beta < 3.1.0.beta3, 3.1.0
Weakness classification (CWE)
References
- github.com/discourse/discourse/security/advisories/GHSA-cp7c-fm4c-6xxx (Vendor Advisory)
- github.com/discourse/discourse/pull/20700 (Patch)
- github.com/discourse/discourse/pull/20701 (Patch)
- github.com/discourse/discourse/commit/0bd64788d2b4680c04fbef76314a24884d65fed9 (Patch)
- github.com/discourse/discourse/commit/78a3efa7104eed6dd3ed7a06a71e2705337d9e61 (Patch)
Frequently asked questions
- What is CVE-2023-28107?
- CVE-2023-28107 is a medium-severity vulnerability in Discourse, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 4.5/10. Published 2023-03-17.
- How severe is CVE-2023-28107?
- Medium severity. CVSS v3 base score is 4.5 out of 10.