---
id: CVE-2026-117532
title: REDAXO Core 5.3.0 before 5.21.4 Authentication Bypass via History Plugin
summary: >-
  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 …
severity: critical
cvss: 9.8
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'
cvssSource: cna
cwe:
  - CWE-287
vendor: redaxo
product: core
affected:
  - core >= 5.3.0 < 5.21.4
published: '2026-10-27'
updated: '2026-10-27'
sourceUpdated: '2026-10-27T10:59:28.811Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-117532'
references:
  - url: 'https://github.com/redaxo/core/security/advisories/GHSA-px8f-whj8-hrpq'
    label: GitHub Security Advisory (GHSA-px8f-whj8-hrpq)
  - url: >-
      https://www.vulncheck.com/advisories/redaxo-core-5.3.0-before-5.21.4-authentication-bypass-via-history-plugin
    label: >-
      VulnCheck Advisory: REDAXO Core 5.3.0 before 5.21.4 Authentication Bypass
      via History Plugin
tags:
  - cve.org
ingestedAt: '2026-10-27T16:11:59.295Z'
---

## Overview

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.

## Affected

- `core >= 5.3.0 < 5.21.4`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.