Description
Discourse is an open-source discussion platform. Prior to version 2.8.4 in the `stable` branch and version `2.9.0.beta5` in the `beta` and `tests-passed` branches, banner topic data is exposed on login-required sites. This issue is patched in version 2.8.4 in the `stable` branch and version `2.9.0.beta5` in the `beta` and `tests-passed` branches of Discourse. As a workaround, one may disable banners.
References (3)
Core 3
Core References
Third Party Advisory x_refsource_confirm
https://github.com/discourse/discourse/security/advisories/GHSA-5f4f-35fx-gqhq
Patch, Third Party Advisory x_refsource_misc
https://github.com/discourse/discourse/pull/17071
Patch, Third Party Advisory x_refsource_misc
https://github.com/discourse/discourse/commit/ae6a9079436fb9b20fd051d25fb6d8027f0ec59a
Scores
CVSS v3
5.3
EPSS
0.0037
EPSS Percentile
58.8%
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 (2)
discourse/discourse
2.9.0 beta1 (4 CPE variants)
discourse/discourse
< 2.8.4
Published
Jun 14, 2022
Tracked Since
Feb 18, 2026