---
id: CVE-2026-65828
title: Zammad is a web based open source helpdesk/customer support system
summary: >-
  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 …
severity: low
cvss: 2.3
cvssVector: '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'
cwe:
  - CWE-862
vendor: zammad
product: zammad
affected:
  - zammad < 7.1.2
published: '2026-09-25'
updated: '2026-09-25'
sourceUpdated: '2026-09-25T19:17:55.830'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-65828'
references:
  - url: >-
      https://github.com/zammad/zammad/commit/3b755736fdbee8ff6ddf53661d6912d3d3028325
    label: security-advisories@github.com
  - url: 'https://github.com/zammad/zammad/security/advisories/GHSA-x4f3-367g-m93g'
    label: security-advisories@github.com
tags:
  - nvd
  - cve.org
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-09-25T18:38:49.403514Z'
cvssSource: cna
ingestedAt: '2026-09-25T18:14:20.405Z'
---

## Overview

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.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.