CVE-2025-53102
Discourse's WebAuthn challenge isn't cleared from user session after authentication
- State
- Published
- Severity
- 8.2 High
- Published
- Jul 29, 2025
- Updated
- Jul 29, 2025
- Reserved
- Jun 25, 2025
Description
Discourse is an open-source community discussion platform. Prior to version 3.4.7 on the `stable` branch and version 3.5.0.beta.8 on the `tests-passed` branch, upon issuing a physical security key for 2FA, the server generates a WebAuthn challenge, which the client signs. The challenge is not cleared from the user’s session after authentication, potentially allowing reuse and increasing security risk. This is fixed in versions 3.4.7 and 3.5.0.beta.8.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 8.2 High | CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N | GitHub_M |
Weaknesses
- CWE-384 Session Fixation
Affected Products
| Product | Versions |
|---|---|
discoursediscourse |
|
References
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