CVE-2024-24817

User can see invitees in events created in PMs and private categories

MEDIUM
5.3
CVSS Score
Published: February 22, 2024 at 05:45 PM UTC
Updated: June 17, 2026 at 07:14 AM UTC
2 products affected across 1 vendorCalendarDiscourse Calendar

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Severity
MEDIUM5.3
Exploit prediction
EPSS 0.4%
SSVC
No known exploit

Description

Discourse Calendar adds the ability to create a dynamic calendar in the first post of a topic on the open-source discussion platform Discourse. Prior to version 0.4, event invitees created in topics in private categories or PMs (private messages) can be retrieved by anyone, even if they're not logged in. This problem is resolved in version 0.4 of the discourse-calendar plugin. While no known workaround is available, putting the site behind `login_required` will disallow this endpoint to be used by anonymous users, but logged in users can still get the list of invitees in the private topics.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 0.4
Affected range stops below 0.4, so it looks safe — our inference, not a vendor statement
v < 0.4
Affected range stops below 0.4, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
LOW
Integrity
NONE
Availability
NONE
Vector?

Quick Info

StatusANALYZED
CWE
CWE-200NVD-CWE-noinfo

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