Description
An authenticated administrator can be induced to delete administrative Import/Export templates through a Cross-Site Request Forgery (CSRF) attack. The OTRS AdminImportExport::TemplateDelete action does not validate the request's ChallengeToken, allowing an unauthenticated remote attacker to craft a malicious request that is executed with the privileges of an active administrator session.
This issue affects OTRS:
* 7.0.X
* 8.0.X
* 2023.X
* 2024.X
* 2025.X
* 2026.X before 2026.7.X
Please note that ((OTRS)) Community Edition 6.x and before are vulnerable. Products based on the ((OTRS)) Community Edition also very likely to be affected
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| OTRS GmbH (former OTRS AG) | OTRS | 7.0.x, 8.0.x, 2023.x, 2024.x, 2025.x, 2026.x – ≤ 2026.6.x | — |
| OTRS GmbH (former OTRS AG) | ((OTRS)) Community Edition | 6.x | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | znuny | No fix yet | — |
| Ubuntu 26.04 LTS | znuny | No fix yet | — |
| Ubuntu 24.04 LTS | znuny | No fix yet | — |
| Ubuntu 22.04 LTS | otrs2 | No fix yet | — |
| Ubuntu 20.04 LTS | otrs2 | No fix yet | — |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 18.04 LTS | otrs2 | No fix yet | — |
| Ubuntu 16.04 LTS | otrs2 | No fix yet | — |
Advisories 1
- WID-SEC-2026-3872 OTRS: Mehrere Schwachstellen BSI CERT-Bund (WID) · Oct 11, 2026