CVE-2024-26145 MEDIUM

CVE-2024-26145: Uninvited user is able to join and mark the attendance of the the private event

Vendor Discourse
Product discourse-calendar
Weakness CWE-863 · Incorrect authorization
Published February 21, 2024
Last update August 27, 2024

CVSS base score

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

CVSS vector

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

What the vulnerability does

01Description

Discourse Calendar adds the ability to create a dynamic calendar in the first post of a topic on Discourse. Uninvited users are able to gain access to private events by crafting a request to update their attendance. This problem is resolved in commit dfc4fa15f340189f177a1d1ab2cc94ffed3c1190. As a workaround, one may use post visibility to limit access.

Key dates

02Disclosure timeline

February 21, 2024 CVE published
August 27, 2024 Record updated