---
cve: "CVE-2026-65828"
severity: "LOW"
cvss: 2.3
epss: "0.2%"
vendor: "Zammad"
kev: false
exploited: false
published: "2026-09-25 18:17:29"
tags: [cve, security, low]
source: tsecurity.de CVE-Dossier
exported: "2026-09-27T03:08:15+02:00"
---

# CVE-2026-65828

> 2.3 LOW · 🧪 PoC

## Beschreibung

Zammad is a web based open source helpdesk/customer support system. Prior to 7.1.2, the legacy destroy_form action on AttachmentsController deletes UploadCache Store records based solely on a user-supplied form_id without verifying that the requesting user owns those records. An authenticated attacker who learns another user's pending-upload UUID can silently remove temporary file uploads before the victim submits their ticket or article. This issue is fixed in version 7.1.2.

## CVSS-Vektor

```
CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N
```

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

## Patch verfügbar (OSV)

- 7195a4a3e3ba9e801b6ad93f191ae423ed573d15 (Commit)

## Referenzen

- <https://github.com/zammad/zammad/security/advisories/GHSA-x4f3-367g-m93g>
- <https://github.com/zammad/zammad/commit/3b755736fdbee8ff6ddf53661d6912d3d3028325>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-65828) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_