- Release Date: September 2, 2025
- Component Type: Third party extension. This extension is not a part of the TYPO3 default installation.
- Component: "TYPO3 Backup Plus" (ns_backup)
- Composer Package Name: nitsan/ns-backup
- Vulnerability Type: Command Injection
- Affected Versions: 13.0.2 and below
- Severity: High
- Suggested CVSS v4.0: AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
- References: CVE-2025-9573, CWE-77
Problem Description
The extension fails to sanitize user input resulting in Command Injection when creating a backup. Exploiting this vulnerability requires a valid administrator account.
Solution
An updated version 13.0.3 is available from the TYPO3 extension manager, packagist and at
https://extensions.typo3.org/extension/download/ns_backup/13.0.3/zip
Users of the extension are advised to update the extension as soon as possible.
Credits
Thanks to the Swiss NCSC Vulnerability Management Team for reporting the vulnerability and to NITSAN for providing an updated version of the extension.
General Advice
Follow the recommendations that are given in the TYPO3 Security Guide. Please subscribe to the typo3-announce mailing list.