medium6.5
CVE-2026-116897
REDAXO core before 5.21.4 contains a missing authorization vulnerability in the structure/version and structure/history frontend preview modes, which do not ch…
Impact
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one holding history[article_rollback], can set rex_version or rex_history_date with arbitrary article_id values to read unpublished working versions and historic or deleted content.
Affected products
| Product | Affected versions |
|---|---|
| REDAXO Core | before 5.21.4 |
Versions were read from the advisory text. No structured product data has been published for this record yet.