---
id: "CVE-2026-116896"
kind: "vulnerability"
aliases: ["CVE-2026-116896"]
title: "REDAXO: backup addon exports any table, exposing admin sessions and password hashes"
severity: "high"
cvss: 7.7
epss: null
exploited: false
status: "open"
category: "package"
products: []
ecosystems: []
tags: ["package", "php", "redaxo", "self-hosted"]
not_affected_if: ["default-config", "no-backup-addon"]
published_at: "2026-10-27T11:17:32+00:00"
first_seen_at: "2026-10-27T11:31:27+00:00"
updated_at: "2026-10-27T11:31:45+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-116896", "first_seen_at": "2026-10-27T11:31:27+00:00"}]
---

# REDAXO: backup addon exports any table, exposing admin sessions and password hashes

The REDAXO backup addon lets users with the backup[export] permission export any database table, including rex_user and rex_user_session. An attacker with that permission can read plaintext session IDs to take over admin accounts, or password hashes to crack offline.

_Summary, check and fix written by a model from the sources; labelled as such._

## How to check

- Check the installed REDAXO version in the project (`redaxo/src/core/boot.php` or the version shown in the backend) and confirm whether it is below `5.21.5`.
- Check whether the backup addon is installed and which roles hold the `backup[export]` permission in the backend user/role settings.

## Fix

- Upgrade REDAXO to `5.21.5` or later.
- Until upgraded, remove the `backup[export]` permission from non-admin roles.

## Timeline

- 2026-10-27T11:31:27+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-116896

## From the sources

REDAXO before 5.21.5 contains a missing authorization vulnerability in the backup addon export that accepts any database table, allowing non-admin users with the backup[export] permission to export rex_user, rex_user_session, and other applications' tables. Attackers can obtain plaintext session ids and stay-logged-in keys to take over admin accounts, or password hashes for offline cracking.

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