Description
Discourse is an option source discussion platform. Prior to version 2.8.14 on the `stable` branch and version 3.0.0.beta16 on the `beta` and `tests-passed` branches, the number of times a user posted in an arbitrary topic is exposed to unauthorized users through the `/u/username.json` endpoint. The issue is patched in version 2.8.14 and 3.0.0.beta16. There is no known workaround.
References (2)
Core 2
Core References
Third Party Advisory x_refsource_confirm
https://github.com/discourse/discourse/security/advisories/GHSA-xx97-6494-p2rv
Patch, Third Party Advisory x_refsource_misc
https://github.com/discourse/discourse/commit/cbcf8a064b4889a19c991641e09c399bfa1ef2ad
Scores
CVSS v3
5.3
EPSS
0.0027
EPSS Percentile
50.8%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
yes
Technical Impact
partial
Details
CWE
CWE-200
Status
published
Products (5)
discourse/discourse
1.1.0 beta1 (9 CPE variants)
discourse/discourse
1.2.0 beta1 (9 CPE variants)
discourse/discourse
1.3.0 beta1 (11 CPE variants)
discourse/discourse
1.4.0 beta1 (12 CPE variants)
discourse/discourse
1.5.0 beta1 (9 CPE variants)
Published
Jan 05, 2023
Tracked Since
Feb 18, 2026