REDAXO before 5.21.4 Missing Authorization in Version and History Previews
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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one holding history[article_rollback], can set rex_version or rex_history_date with arbitrary article_id values to read unpublished working versions and historic or deleted content.
No remediation guidance has been written for this CVE yet. What the record does show:
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