Resource exhaustion in Discourse

CVE-2023-48297

Discourse is a platform for community discussion. The message serializer uses the full list of expanded chat mentions (@all and @here) which can lead to a very long array of users. This issue was patched in versions 3.1.4 and beta 3.2.0.beta5.

Vulnerability class: DoS (Denial of Service)

Published · last modified .

CVSS v3 metric

CVSS v3 base score 8.6 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.005 (41.6th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 42nd percentile — 41.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2023-48297: held from 0.005 to 0.005.

EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000

Affected products

  • Discourse — versions >= 3.2.0beta1, < 3.2.0.beta4, 3.2.0, < 3.1.4

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2023-48297?
CVE-2023-48297 is a high-severity vulnerability in Discourse, classified under Uncontrolled Resource Consumption. CVSS score: 8.6/10. Published 2024-01-12.
How severe is CVE-2023-48297?
High severity. CVSS v3 base score is 8.6 out of 10.