Medium severity · published Feb 21, 2024
CVE-2024-26145
Uninvited user is able to join and mark the attendance of the the private event
4.3
CVSS
0.4%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
Low
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 33% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
DI
discourse-calendar · discourse
>= 2201b254, < dfc4fa15f340189f177a1d1ab2cc94ffed3c1190 · source: vendor
CA
Calendar · Discourse
before 2024-02-21 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2024-26145
CVE.org
https://www.cve.org/CVERecord?id=CVE-2024-26145
Patch
https://github.com/discourse/discourse-calendar/commit/dfc4fa15f340189f177a1d1ab2cc94ffed3c1190
Vendor Advisory
https://github.com/discourse/discourse-calendar/security/advisories/GHSA-4hh7-6m34-p2jp
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5.3
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4.3
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