---
id: "CVE-2026-117532"
kind: "vulnerability"
aliases: ["CVE-2026-117532"]
title: "REDAXO CMS: structure/history plugin flaw lets attackers forge login tokens"
severity: "critical"
cvss: 9.8
epss: null
exploited: false
status: "open"
category: "runtime"
products: []
ecosystems: []
tags: ["cms", "php", "redaxo", "runtime", "self-hosted"]
not_affected_if: ["core-5.21.4-or-later"]
published_at: "2026-10-27T11:17:33+00:00"
first_seen_at: "2026-10-27T11:31:28+00:00"
updated_at: "2026-10-27T11:31:37+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-117532", "first_seen_at": "2026-10-27T11:31:28+00:00"}]
---

# REDAXO CMS: structure/history plugin flaw lets attackers forge login tokens

REDAXO core versions from 5.3.0 before 5.21.4 have an authentication bypass in the structure/history plugin. An unauthenticated attacker can forge temporary login tokens for accounts such as admin, which gives backend access and code execution.

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

## How to check

- Check the installed REDAXO core version in the backend or in `redaxo/src/core/boot.php`; unknown if the sources give another location
- Look for the structure/history plugin in the addons directory; unknown if the sources name the exact path

## Fix

- Upgrade REDAXO core to `5.21.4` or later
- Rotate backend admin passwords and review admin accounts after upgrading, since forged tokens may already have been used

## Timeline

- 2026-10-27T11:31:28+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-117532

## From the sources

REDAXO core from 5.3.0 before 5.21.4 contains an authentication bypass vulnerability in the structure/history plugin that allows unauthenticated attackers to forge temporary login tokens. Attackers can force the session-tied secret into a predictable state and forge tokens for accounts like admin, gaining backend access and code execution outside live mode.

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_Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai_