CVE-2023-28440 | BDVDB-2026-200503 Detail

discoursediscourse

Description#

Discourse is an open source platform for community discussion. In affected versions a maliciously crafted request from a Discourse administrator can lead to a long-running request and eventual timeout. This has the greatest potential impact in shared hosting environments where admins are untrusted. This issue has been addressed in versions 3.0.3 and 3.1.0.beta4. Users are advised to upgrade. There are no known workarounds for this vulnerability.

Impact#

Per CVSS v3.1: confidentiality impact none, integrity impact none, availability impact low. Attack vector: network.

Weaknesses#

CWE-400 Uncontrolled Resource Consumption

References#

https://github.com/discourse/discourse/security/advisories/GHSA-vm65-pv5h-6g3w

Exploit#

No public exploit known

History#

Version 12023-04-18Record published in the CVE List.
Version 22025-02-06Most recent update recorded in the CVE List.

Published

Published: 2023-04-18
Last modified: 2025-02-06

Vendor information

Vendor: discourse
Product: discourse

All discourse vulnerabilities

Score

2.7 Low

EPSS

less than 1%, Very Low

Estimated chance of exploitation in the next 30 days. EPSS percentile: 53.1.

KEV

Not listed in the CISA Known Exploited Vulnerabilities catalog.

Impact

Denial of Service

Action

No specific action is recorded in the source data. Check the references for vendor guidance.

Affected Systems

Vulnerable
stable: <= 3.0.2
Fixed
Not stated
Vulnerable
beta: <= 3.1.0.beta3
Fixed
Not stated

Scoring System

CVSS v4.0

Not available

CVSS v3.1

2.7 Low

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:L

Metric breakdown
Attack Vector	Network
Attack Complexity	Low
Privileges Required	High
User Interaction	None
Scope	Unchanged
Confidentiality	None
Integrity	None
Availability	Low

CVSS v3.0

Not available

CVSS v2

Not available

Source: CVE List v5 (record); CISA KEV (kev, action); FIRST EPSS (epss).