---
cve: "CVE-2022-39356"
severity: "HIGH"
cvss: 8.9
epss: "58%"
vendor: "discourse"
kev: false
exploited: false
published: "2022-11-02 17:15:17"
tags: [cve, security, high]
source: tsecurity.de CVE-Dossier
exported: "2026-09-08T06:37:09+02:00"
---

# CVE-2022-39356

> 8.9 HIGH · 🧪 PoC

## Beschreibung

Discourse is a platform for community discussion. Users who receive an invitation link that is not scoped to a single email address can enter any non-admin user's email and gain access to their account when accepting the invitation. All users should upgrade to the latest version. A workaround is temporarily disabling invitations with `SiteSetting.max_invites_per_day = 0` or scope them to individual email addresses.

## CVSS-Vektor

```
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:L
```

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Netzwerk | bad |
| AC Komplexität | Gering | bad |
| PR Privilegien | Gering | warn |
| UI Interaktion | Erforderlich | good |
| S Scope | Verändert | bad |
| C Vertraulichkeit | Hoch | bad |
| I Integrität | Hoch | bad |
| A Verfügbarkeit | Gering | warn |

## Patch verfügbar (OSV)

- ce28fd2e1d75162dc7dd78bacbe1233dcad9ff1d (Commit)

## Referenzen

- <https://github.com/discourse/discourse/security/advisories/GHSA-x8w7-rwmr-w278>
- <https://github.com/discourse/discourse/pull/18817>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2022-39356) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_