Description
Discourse is the an open source discussion platform. In affected versions an email activation route can be abused to send mass spam emails. A fix has been included in the latest stable, beta and tests-passed versions of Discourse which rate limits emails. Users are advised to upgrade. Users unable to upgrade should manually rate limit email.
References (2)
Core 2
Core References
Third Party Advisory x_refsource_confirm
https://github.com/discourse/discourse/security/advisories/GHSA-m5w9-8gp8-2hrf
Patch, Third Party Advisory x_refsource_misc
https://github.com/discourse/discourse/commit/af1cb735db7fb73217b85d22dbadd1bc824ac0b0
Scores
CVSS v3
6.5
EPSS
0.0035
EPSS Percentile
57.7%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
partial
Details
CWE
CWE-770
Status
published
Products (2)
discourse/discourse
2.9.0 beta1 (7 CPE variants)
discourse/discourse
< 2.8.6
Published
Aug 01, 2022
Tracked Since
Feb 18, 2026