---
cve: "CVE-2023-22455"
severity: "MEDIUM"
cvss: 6.8
epss: "48%"
vendor: "discourse"
kev: false
exploited: false
published: "2023-01-05 21:15:09"
tags: [cve, security, medium]
source: tsecurity.de CVE-Dossier
exported: "2026-09-17T01:32:35+02:00"
---

# CVE-2023-22455

> 6.8 MEDIUM · 🧪 PoC

## Beschreibung

Discourse is an option source discussion platform. Prior to version 2.8.14 on the `stable` branch and version 3.0.0.beta16 on the `beta` and `tests-passed` branches, tag descriptions, which can be updated by moderators, can be used for cross-site scripting attacks. This vulnerability can lead to a full XSS on sites which have modified or disabled Discourse’s default Content Security Policy. Versions 2.8.14 and 3.0.0.beta16 contain a patch.

## CVSS-Vektor

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

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

## Patch verfügbar (OSV)

- df6d323bd187746e254538c81ed29181efc2abe3 (Commit)
- 692329896ac64d8581947e977202c243eef3b5a2 (Commit)

## Referenzen

- <https://github.com/discourse/discourse/security/advisories/GHSA-5rq6-466r-6mr9>
- <https://github.com/discourse/discourse/commit/692329896ac64d8581947e977202c243eef3b5a2>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2023-22455) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_