CVE-2023-28440

LOW

Discourse <3.0.3, <3.1.0.beta4 - DoS

Title source: llm
STIX 2.1

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.

References (1)

Core 1
Core References

Scores

CVSS v3 2.7
EPSS 0.0049
EPSS Percentile 65.6%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:L

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-400
Status published
Products (5)
discourse/discourse 1.1.0 beta1 (9 CPE variants)
discourse/discourse 1.2.0 beta1 (9 CPE variants)
discourse/discourse 1.3.0 beta1 (11 CPE variants)
discourse/discourse 1.4.0 beta1 (12 CPE variants)
discourse/discourse 1.5.0 beta1 (9 CPE variants)
Published Apr 18, 2023
Tracked Since Feb 18, 2026