Medium severity · published Oct 27, 2026
CVE-2026-116899
REDAXO before 5.21.4 Broken Access Control in Slice Operations
New
6.5
CVSS
–
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
High
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
CO
core · redaxo
before 5.21.4 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-116899
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-116899
github.com
https://github.com/redaxo/core/security/advisories/GHSA-5m63-c3qx-wq8v
www.vulncheck.com
https://www.vulncheck.com/advisories/redaxo-before-5.21.4-broken-access-control-in-slice-operations
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