Resource exhaustion in Discourse
CVE-2023-23616
Discourse is an open-source discussion platform. Prior to version 3.0.1 on the `stable` branch and 3.1.0.beta2 on the `beta` and `tests-passed` branches, when submitting a membership request, there is no character limit for the reason provided with the request. This could potentially allow a user to flood the database with a large amount of data. However it is unlikely this could be used as part of a DoS attack, as the paths reading back the reasons are only available to administrators. Starting in version 3.0.1 on the `stable` branch and 3.1.0.beta2 on the `beta` and `tests-passed` branches, a limit of 280 characters has been introduced for membership requests.
Vulnerability class: DoS (Denial of Service)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 3.5 (Low). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:L.
EPSS exploit prediction
EPSS: 0.007 (50.4th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 50th percentile — 50.4% 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 2.4.0, 3.0.1, 3.1.0
Weakness classification (CWE)
References
- github.com/discourse/discourse/pull/19993 (Patch, Third Party Advisory)
- github.com/discourse/discourse/commit/d5745d34c20c31a221039d8913f33064433003ea (Patch, Third Party Advisory)
- github.com/discourse/discourse/security/advisories/GHSA-6xff-p329-9pgf (Third Party Advisory)
- github.com/discourse/discourse/commit/3e0cc4a5d9ef44ad902f6985d046ebb32f0a14ee (Patch, Third Party Advisory)
Frequently asked questions
- What is CVE-2023-23616?
- CVE-2023-23616 is a low-severity vulnerability in Discourse, classified under Uncontrolled Resource Consumption. CVSS score: 3.5/10. Published 2023-01-28.
- How severe is CVE-2023-23616?
- Low severity. CVSS v3 base score is 3.5 out of 10.