How to fix CVE-2025-48206?

Within 30 days: Identify affected systems and apply vendor patches as part of regular patch cycle. Verify Content-Security-Policy and output encoding.

Is Ns Backup affected by CVE-2025-48206?

Organizations using ns_backup extension through 13.0.0 for TYPO3 should be aware of moderate risk from CVE-2025-48206, a cross-site scripting vulnerability rated CVSS 6.1. Attackers could inject scripts to steal sessions or perform actions as authenticated users.

Ns Backup CVE-2025-48206

MEDIUM

Cross-site Scripting (XSS) (CWE-79)

2025-05-21 [email protected]

XSS Ns Backup

6.1

CVSS 3.1

CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

None

Lifecycle Timeline

Patch released

Mar 31, 2026 - 21:13 nvd

Patch available

Analysis Generated

Mar 28, 2026 - 18:43 vuln.today

CVE Published

May 21, 2025 - 16:15 nvd

MEDIUM 6.1

DescriptionNVD

The ns_backup extension through 13.0.0 for TYPO3 allows XSS.

AnalysisAI

The ns_backup extension through 13.0.0 for TYPO3 allows XSS. Rated medium severity (CVSS 6.1), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Technical ContextAI

This vulnerability is classified as Cross-Site Scripting (XSS) (CWE-79), which allows attackers to inject malicious scripts into web pages viewed by other users. Affected products include: Nitsantech Ns-Backup. Version information: through 13.0.0.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Sanitize all user input, use Content-Security-Policy headers, encode output contextually (HTML, JS, URL). Use frameworks with built-in XSS protection.

CVE-2025-48206 vulnerability details – vuln.today

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