TI-2026-81104 Aliases CVE-2026-116897 GHSA-f7g4-vhhq-7w9x

Missing authorization in REDAXO version and history previews

LOW 31CWE-862Published 2026-10-27 · Updated 2026-11-02

Key facts

Attack vector: Network
Privileges required: Low
User interaction: None
Attack complexity: Low
Attack requirements: None
Impact type: Security bypass
Confidentiality · integrity · availability: High · None · None
Fix status: Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-862.

Summary

REDAXO core before 5.21.4 contains a missing authorization vulnerability (CWE-862) in the structure/version and structure/history frontend preview modes. These modes do not check category or clang permissions for the previewed article. Any backend user, or a user holding history[article_rollback], can read unpublished working versions and historic or deleted article content.

Written with Claude Haiku 5.5 from the sources below · 2026-11-02

Description from the CNA

REDAXO core before 5.21.4 contains a missing authorization vulnerability in the structure/version and structure/history frontend preview modes, which do not check category or clang permissions for the previewed article. Any backend user, or one holding history[article_rollback], can set rex_version or rex_history_date with arbitrary article_id values to read unpublished working versions and historic or deleted content.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00209 11th percentileScored 2026-11-07

Fix Fixed core (redaxo): 5.21.4

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
redaxo	core	before 5.21.4	5.21.4	Patch available	CNA

core Vendorredaxo Affected before 5.21.4 Fixed in 5.21.4 Patch available CNA

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPE	Versions	Role	Vendor
cpe:2.3:a:redaxo:redaxo::::::::	—	—	redaxo

cpe:2.3:a:redaxo:redaxo:*:*:*:*:*:*:*:* Versions — — ·redaxo

Remediation

Update REDAXO core to version 5.21.4 or later, which fixes this issue.

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 · 2026-10-27
redaxo core 5.21.4
6 records Highest priority Priority MEDIUM 1 MEDIUM, 5 LOW
Other records, highest priority first
- TI-2026-81108 Authentication bypass in REDAXO Core history plugin allows token forgeryPriority MEDIUM 49
- 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
Show all 6 records →

Timeline

2026-10-27 Threatist record created from CVE-2026-116897
2026-10-27 Alias added: GHSA-f7g4-vhhq-7w9x
2026-10-28 Priority changed: MEDIUM → LOW
2026-11-02 CISA SSVC decision points changed

References

Advisory 1

GitHub Security Advisory (GHSA-v4m9-jvvr-83cx)

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

See all 48 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences