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Low, CVSS 2.7

The Backup Plus extension for TYPO3 (ns_backup) allows XSS

CVE-2025-48206GHSA-xg53-mhh9-3cq7

What to do

Vendor fix available. Upgrade each affected package to the fixed version on its release line (nitsan/ns-backup 13.0.1), redeploy, then verify what is actually installed.

This page has no inventory attached, so it cannot say whether you are affected. A vendor fix is not proof that your deployment is fixed.

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Affected packages

Sources

Severity and exploitation
Exploitation
No confirmed exploitation recorded. Patch Next marks exploitation only from CISA KEV.
CVSS 4.0
2.7 · CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:U · score source
EPSS
  • CVE-2025-48206: 0.24% estimated exploitation activity in the next 30 days; percentile 15.42 (FIRST EPSS, 2026-11-03). This is a model estimate, not proof of exploitation or customer exposure.
Source description

As published by the source; long descriptions are shortened.

The nsbackup extension through 13.0.0 for TYPO3 allows XSS.

Dates and revisions
Published by the source
Last modified by the source
Source last checked
  1. Revision 1 · created ·

    Published from ghsa record GHSA-xg53-mhh9-3cq7

Agent brief

Preview the exact text before you copy it. Commands are read-only suggestions; review them before running anything.

# Patch Next advisory brief: CVE-2025-48206

Advisory: The Backup Plus extension for TYPO3 (ns_backup) allows XSS
IDs: CVE-2025-48206, GHSA-xg53-mhh9-3cq7
Record: https://patchnext.com/advisories/cve-2025-48206 (revision 1, source checked 26 Oct 2026, 14:33 UTC)
Inventory: none attached. This brief comes from a public page and does not say whether any deployment is affected.
Severity: Low (CVSS 2.7)
Exploitation: no confirmed exploitation recorded. Patch Next confirms exploitation only from CISA KEV.
Vendor response: Vendor fix available; fixed versions by package: nitsan/ns-backup 13.0.1. A vendor fix does not mean a deployment is fixed.

## Affected components
- Packagist nitsan/ns-backup: affected < 13.0.1; fixed in 13.0.1

## Suggested inspection (read-only)
- Packagist nitsan/ns-backup: check the installed version with your package manager.

## Supported action
Upgrade each affected component to a fixed version on its release line. For a transitive dependency, upgrade the parent package or add an override or constraint, then regenerate the lockfile. Redeploy every environment that ran an affected version.

## Required regression checks
- Run the test suite and a production build.
- Exercise the features that depend on nitsan/ns-backup.
- Repeat the inspection and confirm that only fixed versions remain installed.

## Rollback considerations
- Keep the previous lockfile and deployment artifact. Rolling back reinstates the vulnerable version, so apply any documented mitigation while you fix forward.

## Unresolved questions
- Which deployments run an affected version?
- Exploitation status can change. Check again before lowering the priority.
- Mark the work resolved only after the fixed version is verified in production.

## Sources
- Verified: https://github.com/advisories/GHSA-xg53-mhh9-3cq7 (GitHub-reviewed advisory GHSA-xg53-mhh9-3cq7 lists affected ranges: Packagist nitsan/ns-backup >=0 <13.0.1)

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