CVE-2026-116897

Medium

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one holding history[article_rollback], can set rex_version or rex_history_date with arbitrary article_id values to read unpublished working versions and historic or deleted content.

SeverityMedium

CVSS6.5

Exploit probability11. percentile0.2%

Product

Redaxo Core

PublishedOct 27, 2026

First seenOct 27, 2026

Weakness typeCWE-862Missing authorization

How to fix

Update

redaxo core5.21.4 or later

Vendor advisories

github.com/redaxo/core/security/advisories/GHSA-v4m9-jvvr-83cx

Affected products

Product	Affected versions	Fixed in
redaxo core	v < 5.21.4	5.21.4

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