---
cve: "CVE-2025-53102"
severity: "HIGH"
cvss: 8.2
epss: "45%"
vendor: "discourse"
kev: false
exploited: false
published: "2025-07-29 20:15:28"
tags: [cve, security, high]
source: tsecurity.de CVE-Dossier
exported: "2026-09-16T19:10:37+02:00"
---

# CVE-2025-53102

> 8.2 HIGH · 🧪 PoC

## Beschreibung

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.

## CVSS-Vektor

```
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
```

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Netzwerk | bad |
| AC Komplexität | Hoch | good |
| PR Privilegien | Keine | bad |
| UI Interaktion | Keine | bad |

## Patch verfügbar (OSV)

- 3d149ba8244585f4bcb41db77aa8825e72468bdb (Commit)
- 20bf65099bb861a141bc10e8a4eab65329d91802 (Commit)

## Referenzen

- <https://github.com/discourse/discourse/security/advisories/GHSA-hv49-93h5-4wcv>
- <https://github.com/discourse/discourse/commit/20bf65099bb861a141bc10e8a4eab65329d91802>
- <https://github.com/discourse/discourse/commit/8bc0cee2c00a514ea60f33ea6172da2ce5a05beb>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2025-53102) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_