Is CVE-2026-116897 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-116897 being exploited in the wild.

How severe is CVE-2026-116897?

Medium severity, with a CVSS score of 6.5, published 27 October 2026.

Is there a fix for CVE-2026-116897?

Yes: fixed in 5.21.4. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

How is CVE-2026-116897 attacked?

It is attacked over the network.

Am I affected by CVE-2026-116897?

Check whether you run REDAXO Core at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2026-116897: REDAXO missing authorization in structure/version and structure/history previews

CVE-2026-116897 · Severity: medium · CVSS 6.5 · Published 2026-10-27

REDAXO is a web content management system used to publish and manage website content. A flaw in its preview features for unpublished and historic content allows authenticated backend users to bypass access controls and view restricted articles, unpublished drafts, and deleted content they shouldn't have permission to read. An attacker with any backend account—even one created for unrelated purposes—can systematically access confidential content across the site.

Technologies: REDAXO Core. Vendors: REDAXO.

Quick answers

Is CVE-2026-116897 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-116897 being exploited in the wild.
How severe is CVE-2026-116897?: Medium severity, with a CVSS score of 6.5, published 27 October 2026.
Which products and versions are affected?: REDAXO Core before 5.21.4.
Is there a fix for CVE-2026-116897?: Yes: fixed in 5.21.4. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-116897 attacked?: It is attacked over the network.
Am I affected by CVE-2026-116897?: Check whether you run REDAXO Core at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

How to fix

Fixed in: 5.21.4

Technical details

The structure/version and structure/history plugins in REDAXO fail to verify category or language (clang) permissions when rendering article previews. The working-version preview requires only an active backend session (checked via hasSession() without validating session lifetime or user status); the history preview requires only the history[article_rollback] permission. Both accept a freely-chosen article_id parameter and switch the slice revision before the article context is available, preventing permission checks. An attacker can enumerate articles by ID and language to systematically access unpublished content and deleted snapshots.

Affected products

REDAXO core before 5.21.4

Timeline

2026-08-03: disclosed
2026-10-27: patched

References

This page as Markdown. Free to reuse under CC BY 4.0 with a link back.