Description
Discourse is an open source discussion platform. Prior to 3.2.3 and 3.3.0.beta3, improperly sanitized Onebox data could lead to an XSS vulnerability in some situations. This vulnerability only affects Discourse instances which have disabled the default Content Security Policy. This vulnerability is fixed in 3.2.3 and 3.3.0.beta3.
Metrics
CVSS 3.1 6.1/10
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:NWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| discourse | discourse | < 3.2.3; >= 3.3.0.beta1, < 3.3.0.beta3 |
References
- https://github.com/discourse/discourse/commit/26aef0c288839378b9de5819e96eac8cf4ea60fdPatch
- https://github.com/discourse/discourse/commit/311b737c910cf0a69f61e1b8bc0b78374b6619d2Patch
- https://github.com/discourse/discourse/security/advisories/GHSA-cx83-5p6x-9qh9Vendor Advisory
- https://github.com/discourse/discourse/commit/26aef0c288839378b9de5819e96eac8cf4ea60fdPatch
- https://github.com/discourse/discourse/commit/311b737c910cf0a69f61e1b8bc0b78374b6619d2Patch
- https://github.com/discourse/discourse/security/advisories/GHSA-cx83-5p6x-9qh9Vendor Advisory
Timeline
- Published
- Jul 30, 2024
- Last modified
- Jun 17, 2026
- NVD status
- Modified