Zammad: Transmission of Private Resources into a New Sphere
CVE-2025-32360 is a high-severity transmission of private resources into a new sphere vulnerability in Zammad, with a CVSS 3.1 base score of 8.1 out of 10. It can be exploited remotely over the network by an attacker with a low-privileged account, without any action from a user. The record lists version 6.4.2 as the first without the flaw, so updating Zammad to that release or later removes the exposure. There is no confirmed exploitation so far. EPSS estimates a 0.26% chance of exploitation within 30 days, which is low compared with other CVEs.
High severity with no evidence of exploitation so far.
What to do
- Update Zammad to 6.4.2 or a later version.
- Read the advisory on zammad.com for workarounds and exact fixed builds.
Affected products and versions
Version data comes from the organisation that assigned the CVE. Confirm against the vendor advisory before deciding you are unaffected.
How the severity score breaks down
- Attack vector
- NetworkCan be exploited remotely over a network, including the internet.
- Attack complexity
- LowNo special conditions are needed; the attack works reliably.
- Privileges required
- LowA basic user account is enough.
- User interaction
- NoneNo action by a victim is required.
- Scope
- UnchangedImpact stays within the vulnerable component.
- Confidentiality
- HighAll data handled by the component can be read.
- Integrity
- HighData or code can be modified at will.
- Availability
- NoneAvailability is not affected.
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N. Scored by NVD.
| Scoring system | Score | Severity | Scored by |
|---|---|---|---|
| CVSS 3.1 | 4.2 | Medium | CNA (mitre.org) |
| CVSS 3.1 | 8.1 | High | NVD |
Official description
In Zammad 6.4.x before 6.4.2, there is information exposure. Only agents should be able to see and work on shared article drafts. However, a logged in customer was able to see details about shared drafts for their customer tickets in the browser console, which may contain confidential information, and also to manipulate them via API.
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: Transmission of Private Resources into a New Sphere
The product makes resources available to untrusted parties when those resources are only intended to be accessed by the product.
More Transmission of Private Resources into a New Sphere vulnerabilities (CWE-402)
Timeline
- CVE record published.
- CISA published its SSVC assessment (exploitation: none, automatable: no, technical impact: partial).
- Record last changed materially (score, affected products, status or references).
References
Advisories
Other vulnerabilities in Zammad
- 7.8 High severity
- 9.8 Critical severity
Zammad GmbH Zammad Session Fixation Exploited
- 7.1 High severity
- 7.1 High severity
- 9.1 Critical severity
- 8.6 High severity
Recent Transmission of Private Resources into a New Sphere vulnerabilities
- 9.1 Critical severity
- 7.5 High severity
- 7.5 High severity
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