CVSS 3.1
8.1 highCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:NCVE-2023-28112
High (8.1) in discourse discourse. EPSS 0.6% chance of exploitation in the next 30 days.
Discourse is an open-source discussion platform. Prior to version 3.1.0.beta3 of the `beta` and `tests-passed` branches, some user provided URLs were being passed to FastImage without SSRF protection. Insufficient protections could enable attackers to trigger outbound network connections from the Discourse server to private IP addresses. This affects any site running the `tests-passed` or `beta` branches versions 3.1.0.beta2 and prior. This issue is patched in version 3.1.0.beta3 of the `beta` and `tests-passed` branches. There are no known workarounds.
Severity
- EPSS
- 0.6% chance of exploitation in the next 30 days; higher than 47% of CVEs (scores of 2026-10-31)
- CWE
- CWE-918
- Published
- Modified
- Record from
- the NVD, synced
Affected
- discourse:discourse
References
- https://github.com/discourse/discourse/commit/39c2f63b35d90ebaf67b9604cf1d424e5984203c
- https://github.com/discourse/discourse/pull/20710
- https://github.com/discourse/discourse/security/advisories/GHSA-9897-x229-55gh
- https://github.com/discourse/discourse/commit/39c2f63b35d90ebaf67b9604cf1d424e5984203c
- https://github.com/discourse/discourse/pull/20710