Information disclosure in Discourse Calendar
CVE-2024-24817
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.
Vulnerability class: Information Disclosure
EPSS: 0.004 (34.4th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N.
Affected products
- Discourse Calendar
- Discourse Discourse-calendar — versions < 0.4
Weakness classification (CWE)
Public proof-of-concept exploits
References
- security-advisories@github.com (x_refsource_CONFIRM, Vendor Advisory)
- security-advisories@github.com (Patch, x_refsource_MISC)
Frequently asked questions
- What is CVE-2024-24817?
- CVE-2024-24817 is a medium-severity vulnerability in Discourse Calendar, classified under Information Disclosure. CVSS score: 4.3/10. Published 2024-02-22.
- How severe is CVE-2024-24817?
- Medium severity. CVSS v3 base score is 4.3 out of 10.
- Is CVE-2024-24817 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.