CVE-2023-26040 MEDIUM

CVE-2023-26040: Discourse chat messages susceptible to Cross-site Scripting through chat excerpts

Vendor Discourse
Product discourse
Weakness CWE-79 · XSS
Published March 17, 2023
Last update February 25, 2025
View on NVD All CVEs

CVSS base score

6.5/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality None
Integrity Low

CVSS vector

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

What the vulnerability does

01Description

Discourse is an open-source discussion platform. Between versions 3.1.0.beta2 and 3.1.0.beta3 of the `tests-passed` branch, editing or responding to a chat message containing malicious content could lead to a cross-site scripting attack. This issue is patched in version 3.1.0.beta3 of the `tests-passed` branch. There are no known workarounds.

Key dates

02Disclosure timeline

March 17, 2023 CVE published
February 25, 2025 Record updated