SSRF in Discourse

CVE-2023-47121

Discourse is an open source platform for community discussion. Prior to version 3.1.3 of the `stable` branch and version 3.2.0.beta3 of the `beta` and `tests-passed` branches, the embedding feature is susceptible to server side request forgery. The issue is patched in version 3.1.3 of the `stable` branch and version 3.2.0.beta3 of the `beta` and `tests-passed` branches. As a workaround, disable the Embedding feature.

Vulnerability class: SSRF (Server-Side Request Forgery)

Published · last modified .

CVSS v3 metric

CVSS v3 base score 3.4 (Low). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:N/A:N.

EPSS exploit prediction

EPSS: 0.007 (51.1th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 51st percentile — 51.1% 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-2023-47121: held from 0.007 to 0.007.

EPSS over last 30 days · oldest: 0.007 · newest: 0.007 · change: 0.000

Affected products

  • Discourse — versions >= 3.2.0.beta0, < 3.2.0.beta3, < 3.1.3, 3.2.0

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2023-47121?
CVE-2023-47121 is a low-severity vulnerability in Discourse, classified under Server-Side Request Forgery (SSRF). CVSS score: 3.4/10. Published 2023-11-10.
How severe is CVE-2023-47121?
Low severity. CVSS v3 base score is 3.4 out of 10.