REDAXO before 5.21.4 contains a broken access control vulnerability that allows authenticated editors to modify slices in unauthorized categories by pairing a permitted article with a foreign slice id. Attackers can abuse content/edit delete and edit functions or the content_slice_status and content_move_slice APIs to delete, toggle, move, or overwrite other editors' slices.

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact None

Vulnerable System Integrity Impact High

Vulnerable System Availability Impact None

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact None

Integrity Impact High

Availability Impact None

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
redaxo core unaffected
Version Status Constraints
0 affected < 5.21.4
5.21.4 unaffected —

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Project Subscriptions

Vendors Products
Redaxo Subscribe
Redaxo Subscribe
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://github.com/redaxo/core/security/advisories/GHSA-5m63-c3qx-wq8v cve-icon cve-icon
https://www.vulncheck.com/advisories/redaxo-before-5.21.4-broken-access-control-in-slice-operations cve-icon cve-icon
History

Tue, 27 Oct 2026 11:15:00 +0000

Type Values Removed Values Added
Description REDAXO before 5.21.4 contains a broken access control vulnerability that allows authenticated editors to modify slices in unauthorized categories by pairing a permitted article with a foreign slice id. Attackers can abuse content/edit delete and edit functions or the content_slice_status and content_move_slice APIs to delete, toggle, move, or overwrite other editors' slices.
Title REDAXO before 5.21.4 Broken Access Control in Slice Operations
First Time appeared Redaxo
Redaxo redaxo
Weaknesses CWE-639
CPEs cpe:2.3:a:redaxo:redaxo:*:*:*:*:*:*:*:*
Vendors & Products Redaxo
Redaxo redaxo
References
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N'}

cvssV4_0

{'score': 7.1, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-10-27T10:59:27.511Z

Reserved: 2026-10-27T01:02:44.942Z

Link: CVE-2026-116899

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-10-27T11:17:32.937

Modified: 2026-10-27T11:17:32.937

Link: CVE-2026-116899

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-27T12:30:02Z

Weaknesses