CVE-2024-47772

Discourse is an open source platform for community discussion. An attacker can execute arbitrary JavaScript on users' browsers by sending a maliciously crafted chat message and replying to it. This issue only affects sites with CSP disabled. This problem is patched in the latest version of Discourse. All users are advised to upgrade. Users unable to upgrade should ensure CSP is enabled on the forum. Users who do upgrade should also consider enabling a CSP as well as a proactive measure.
Cross-site Scripting
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
6.5 MEDIUM
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L
GitHub_MCNA
6.5 MEDIUM
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L
CISA-ADPADP
---
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Base Score
CVSS 3.x
EPSS Score
Percentile: 33%
VendorProductVersion
discoursediscourse
𝑥
< 3.3.2
discoursediscourse
𝑥
< 3.4.0
discoursediscourse
3.4.0
discoursediscourse
3.4.0:beta1
𝑥
= Vulnerable software versions
Common Weakness Enumeration
References
https://developer.mozilla.org/en-US/docs/Web/HTTP/CSP
https://github.com/discourse/discourse/security/advisories/GHSA-67mh-xhmf-c56h