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
0.2%
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one holding history[article_rollback], can set rex_version or rex_history_date with arbitrary article_id values to read unpublished working versions and historic or deleted content.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?
Exploit prediction (EPSS)0.2% · higher than 11% of CVEs
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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