---
cve: "CVE-2023-32678"
severity: "MEDIUM"
cvss: 6.5
epss: "0.5%"
vendor: "zulip"
kev: false
exploited: false
published: "2023-08-25 21:15:08"
tags: [cve, security, medium]
source: tsecurity.de CVE-Dossier
exported: "2026-09-20T08:21:17+02:00"
---

# CVE-2023-32678

> 6.5 MEDIUM · 🧪 PoC

## Beschreibung

Zulip is an open-source team collaboration tool with topic-based threading that combines email and chat. Users who used to be subscribed to a private stream and have been removed from it since retain the ability to edit messages/topics, move messages to other streams, and delete messages that they used to have access to, if other relevant organization permissions allow these actions. For example, a user may be able to edit or delete their old messages they posted in such a private stream. An administrator will be able to delete old messages (that they had access to) from the private stream. This issue was fixed in Zulip Server version 7.3.

## CVSS-Vektor

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

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

## Patch verfügbar (OSV)

- b85046eb08ad38226ebd62f47856a2cb15d1154a (Commit)

## Referenzen

- <https://github.com/zulip/zulip/security/advisories/GHSA-q3wg-jm9p-35fj>
- <https://zulip.readthedocs.io/en/latest/overview/changelog.html#zulip-server-7-3>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2023-32678) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_