Description
Discourse is an open source discussion platform. Versions 2.8.2 and prior in the `stable` branch, 2.9.0.beta3 and prior in the `beta` branch, and 2.9.0.beta3 and prior in the `tests-passed` branch are vulnerable to a data leak. Users can request an export of their own activity. Sometimes, due to category settings, they may have category membership for a secure category. The name of this secure category is shown to the user in the export. The same thing occurs when the user's post has been moved to a secure category. A patch for this issue is available in the `main` branch of Discourse's GitHub repository and is anticipated to be part of future releases.
References (3)
Core 3
Core References
Third Party Advisory x_refsource_confirm
https://github.com/discourse/discourse/security/advisories/GHSA-c3cq-w899-f343
Patch, Third Party Advisory x_refsource_misc
https://github.com/discourse/discourse/pull/16273
Patch, Third Party Advisory x_refsource_misc
https://github.com/discourse/discourse/commit/9d5737fd28374cc876c070f6c3a931a8071ec356
Scores
CVSS v3
4.3
EPSS
0.0039
EPSS Percentile
60.1%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
partial
Details
CWE
CWE-200
Status
published
Products (1)
discourse/discourse
< 2.8.2
Published
Mar 24, 2022
Tracked Since
Feb 18, 2026