Authentication bypass in REDAXO Core history plugin allows token forgery
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-287.
Summary
REDAXO core from 5.3.0 before 5.21.4 contains an authentication bypass in the structure/history plugin. An unauthenticated attacker can forge temporary login tokens by forcing the session-tied secret into a predictable state, gaining backend access to accounts such as admin and code execution outside live mode. The flaw is classified as CWE-287 (Improper Authentication).
Written with Claude Haiku 5.5 from the sources below · 2026-11-02
Description from the CNA
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
Update REDAXO core to version 5.21.4 or later, which fixes the flaw. The sources list no fixed version for REDAXO core other than 5.21.4.
Written with Claude Haiku 5.5 from the sources below · 2026-11-02
- Fix · CNA core (redaxo) Fixed in 5.21.4
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
redaxo core 5.21.4
6 records Highest priority Priority MEDIUM 1 MEDIUM, 5 LOW
Other records, highest priority first
- TI-2026-81104 Missing authorization in REDAXO version and history previewsPriority LOW 31
- TI-2026-81106 REDAXO slice operations allow editors to modify others' slicesPriority LOW 30
- TI-2026-81105 Missing authorization in REDAXO media pool bulk movePriority LOW 30
Timeline
- 2026-10-27 Threatist record created from CVE-2026-117532
- 2026-10-27 Alias added: GHSA-v3wh-4qp2-g2hm
- 2026-11-02 CISA SSVC decision points changed
References
More redaxo vulnerabilities
- TI-2018-15578 Redaxo CMS Mediapool Addon 5.5.1 Arbitrary File Upload CVSS 4.0HIGH 8.7
- TI-2026-17559 Redaxo has Path Traversal in Backup Addon Leading to Arbitrary File Read CVSS 4.0HIGH 8.3
- TI-2026-38656 Unrestricted file upload in redaxo core CVSS 3.1HIGH 7.5
- TI-2025-39517 A Remote Code Execution (RCE) vulnerability in the template management component in… CVSS 3.1HIGH 7.2
- TI-2024-30898 REDAXO CMS v2.11.0 was discovered to contain a remote code execution (RCE) vulnerability. CVSS 3.1HIGH 7.2
- TI-2024-30896 An arbitrary file upload vulnerability in the MediaPool module of Redaxo CMS v5.17.1… CVSS 3.1HIGH 7.2
Sources
- CVE-2026-117532 · CVE Program
- CVE-2026-117532 · NVD
- FIRST EPSS
- GHSA-v3wh-4qp2-g2hm · GitHub Advisory Database · CC BY 4.0
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