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This repository was archived by the owner on Jul 15, 2025. It is now read-only.

Uninvited user is able to join and mark the attendance of the the private event

Moderate
nattsw published GHSA-4hh7-6m34-p2jp Feb 21, 2024

Package

Discourse (Discourse)

Affected versions

>= 2201b254

Patched versions

> 2201b254

Description

Impact

Uninvited users are able to gain access to private events by crafting a request to update their attendance.

Patches

This problem is resolved in the latest version of the discourse-calendar plugin

Workarounds

Existing access control is based on post visibility. Use that to limit access instead.

Severity

Moderate

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Network
Attack complexity
Low
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

CVE ID

CVE-2024-26145

Weaknesses

No CWEs

Credits