Medium severity · published Oct 27, 2026
CVE-2026-116897
REDAXO before 5.21.4 Missing Authorization in Version and History Previews
New
6.5
CVSS
–
EPSS
No
On KEV
Description
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one holding history[article_rollback], can set rex_version or rex_history_date with arbitrary article_id values to read unpublished working versions and historic or deleted content.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
None
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-2026-116897
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-116897
github.com
https://github.com/redaxo/core/security/advisories/GHSA-v4m9-jvvr-83cx
www.vulncheck.com
https://www.vulncheck.com/advisories/redaxo-before-5.21.4-missing-authorization-in-version-and-history-previews
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