What is the CVSS score of CVE-2021-43794?

CVE-2021-43794 has a CVSS 3.1 base score of 5.3 (Medium). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L. EPSS exploitation probability: 1.0%.

Is there a patch available for CVE-2021-43794?

Yes, a patch is available for CVE-2021-43794. Update the affected software to the latest version immediately.

Discourse CVE-2021-43794

MEDIUM

Externally Controlled Reference to a Resource in Another Sphere (CWE-610)

2021-12-01 security-advisories@github.com

Information Disclosure Discourse

5.3

CVSS 3.1 · Vendor: github

Severity by source

Vendor (github) PRIMARY

5.3 MEDIUM

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Primary rating from Vendor (github) · only source for this CVE.

CVSS VectorVendor: github

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

Low

Lifecycle Timeline

CVE Published

Dec 01, 2021 - 20:15 cve.org

MEDIUM 5.3

DescriptionCVE.org

Discourse is an open source discussion platform. In affected versions an attacker can poison the cache for anonymous (i.e. not logged in) users, such that the users are shown a JSON blob instead of the HTML page. This can lead to a partial denial-of-service. This issue is patched in the latest stable, beta and tests-passed versions of Discourse.

AnalysisAI

Discourse is an open source discussion platform. Rated medium severity (CVSS 5.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity.

Technical ContextAI

This vulnerability is classified under CWE-610. Discourse is an open source discussion platform. In affected versions an attacker can poison the cache for anonymous (i.e. not logged in) users, such that the users are shown a JSON blob instead of the HTML page. This can lead to a partial denial-of-service. This issue is patched in the latest stable, beta and tests-passed versions of Discourse. Affected products include: Discourse.

RemediationAI

A vendor patch is available. Apply the latest security update as soon as possible. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.