What is CVE-2023-28112?

CVE-2023-28112 is a vulnerability in the Discourse discussion platform that allows attackers to trigger outbound network connections from the server.

What is the severity of CVE-2023-28112?

CVE-2023-28112 has a severity level of high with a score of 8.1.

How does CVE-2023-28112 affect Discourse?

CVE-2023-28112 affects Discourse versions up to 3.1.0.beta3 of the beta and tests-passed branches.

How can I fix CVE-2023-28112?

To fix CVE-2023-28112, users should update to version 3.1.0.beta3 or later of Discourse.

Are there any references for CVE-2023-28112?

Yes, you can find references for CVE-2023-28112 at the following links: [Link 1](https://github.com/discourse/discourse/commit/39c2f63b35d90ebaf67b9604cf1d424e5984203c), [Link 2](https://github.com/discourse/discourse/pull/20710), [Link 3](https://github.com/discourse/discourse/security/advisories/GHSA-9897-x229-55gh).

Vulnerability/
CVE-2023-28112

high

8.1

CWE

918

17/3/2023

23/3/2023

CVE-2023-28112: SSRF

First published: Fri Mar 17 2023(Updated: )

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.

Credit: security-advisories@github.com

Affected Software	Affected Version	How to fix
Discourse Discourse	<3.1.0
Discourse Discourse	<=3.1.0
Discourse Discourse	=3.1.0-beta1
Discourse Discourse	=3.1.0-beta2

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Frequently Asked Questions

What is CVE-2023-28112?
CVE-2023-28112 is a vulnerability in the Discourse discussion platform that allows attackers to trigger outbound network connections from the server.
What is the severity of CVE-2023-28112?
CVE-2023-28112 has a severity level of high with a score of 8.1.
How does CVE-2023-28112 affect Discourse?
CVE-2023-28112 affects Discourse versions up to 3.1.0.beta3 of the beta and tests-passed branches.
How can I fix CVE-2023-28112?
To fix CVE-2023-28112, users should update to version 3.1.0.beta3 or later of Discourse.
Are there any references for CVE-2023-28112?
Yes, you can find references for CVE-2023-28112 at the following links: [Link 1](https://github.com/discourse/discourse/commit/39c2f63b35d90ebaf67b9604cf1d424e5984203c), [Link 2](https://github.com/discourse/discourse/pull/20710), [Link 3](https://github.com/discourse/discourse/security/advisories/GHSA-9897-x229-55gh).

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agent/author
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agent/last-modified-date
agent/softwarecombine
agent/first-publish-date
vendor/discourse
canonical/discourse discourse
version/discourse discourse/3.1.0
version/discourse discourse/3.1.0-beta1
version/discourse discourse/3.1.0-beta2

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