Description
Discourse is an open-source discussion platform. Prior to version 3.2.3 on the `stable` branch and version 3.3.0.beta3 on the `tests-passed` branch, Oneboxing against a carefully crafted malicious URL can reduce the availability of a Discourse instance. The problem has been patched in version 3.2.3 on the `stable` branch and version 3.3.0.beta3 on the `tests-passed` branch. There are no known workarounds available for this vulnerability.
References (3)
Core 3
Core References
Third Party Advisory x_refsource_confirm
https://github.com/discourse/discourse/security/advisories/GHSA-664f-xwjw-752c
Patch x_refsource_misc
https://github.com/discourse/discourse/commit/10afe5fcf1ebf2e49cb80716d5e62e184c53519b
Scores
CVSS v3
7.5
EPSS
0.0017
EPSS Percentile
38.5%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
yes
Technical Impact
partial
Details
CWE
CWE-20
Status
published
Products (1)
discourse/discourse
< 3.2.2
Published
Jul 03, 2024
Tracked Since
Feb 18, 2026