---
cve: "CVE-2023-1776"
severity: "HIGH"
cvss: 7.3
epss: "45%"
vendor: "Mattermost"
kev: false
exploited: false
published: "2023-03-31 12:15:06"
tags: [cve, security, high]
source: tsecurity.de CVE-Dossier
exported: "2026-09-12T12:13:39+02:00"
---

# CVE-2023-1776

> 7.3 HIGH

## Beschreibung

Boards in Mattermost allows an attacker to upload a malicious SVG image file as an attachment to a card and share it using a direct link to the file.

## CVSS-Vektor

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

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

## Patch verfügbar (OSV)

- 5a8ebc95d0cbf61d974430d4c03c3ffef36d4543 (Commit)

## Referenzen

- <https://mattermost.com/security-updates/>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2023-1776) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_