CVE-2023-28107
Discourse vulnerable to multisite DoS by spamming backups
Published 3 y ago · modified 4 mo ago · JSON
Summary
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.
CISA SSVC assessment
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 20 mo ago
Exploit prediction (EPSS)
0.65% probability of exploitation in the next 30 days, higher than 51% of all scored CVEs.
CVSS scores
| Assigned by | Version | Score | Vector |
|---|---|---|---|
| CNA | 3.1 | 4.5 | CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:N/I:N/A:H |
| CNA | 3.1 | 4.5 | CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:N/I:N/A:H |
| NVD | 3.1 | 4.9 | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H |
Affected products
- discourse discourse
Classification
- Weakness
- CWE-770 Allocation of Resources Without Limits or Throttling
References
- github.com /discourse/discourse/security/advisories/GHSA-cp7c-fm4c-6xxx · x_refsource_CONFIRM, x_transferred
- github.com /discourse/discourse/pull/20700 · x_refsource_MISC, x_transferred
- github.com /discourse/discourse/pull/20701 · x_refsource_MISC, x_transferred
- github.com /discourse/discourse/commit/0bd64788d2b4680c04fbef76314a24884d65fed9 · x_refsource_MISC, x_transferred
- github.com /discourse/discourse/commit/78a3efa7104eed6dd3ed7a06a71e2705337d9e61 · x_refsource_MISC, x_transferred
Sources
- CVE List: CVE-2023-28107
- NVD: CVE-2023-28107
vulnwire keeps one entry per vulnerability: the CVE id wins, then GHSA; records that alias each other are merged. Machine-readable: JSON.