CVE-2024-53851

Severity CVSS v4.0:

Pending analysis

Type:

CWE-400 Uncontrolled Resource Consumption ('Resource Exhaustion')

Publication date:

04/02/2025

Last modified:

26/09/2025

Description

Discourse is an open source platform for community discussion. In affected versions the endpoint for generating inline oneboxes for URLs wasn&#39;t enforcing limits on the number of URLs that it accepted, allowing a malicious user to inflict denial of service on some parts of the app. This vulnerability is only exploitable by authenticated users. This issue has been patched in the latest stable, beta and tests-passed versions of Discourse. Users are advised to upgrade. Users unable to upgrade should turn off the `enable inline onebox on all domains` site setting and remove all entries from the `allowed inline onebox domains` site setting.

Impact

Vector 3.x

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L CVSS v3.1 Severity and Metrics:

Base Score: 4.30 MEDIUM
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): None
Integrity (I): None
Availability (A): Low

Base Score 3.x

4.30

Severity 3.x

MEDIUM

Vulnerable products and versions

CPE	From	Up to
cpe:2.3:a:discourse:discourse:::::stable:::*		3.3.3 (excluding)
cpe:2.3:a:discourse:discourse:::::beta:::*		3.4.0 (excluding)
cpe:2.3:a:discourse:discourse:3.4.0:beta1:::beta:::*
cpe:2.3:a:discourse:discourse:3.4.0:beta2:::beta:::*
cpe:2.3:a:discourse:discourse:3.4.0:beta3:::beta:::*

To consult the complete list of CPE names with products and versions, see this page

CVE-2024-53851

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools