Is CVE-2026-116893 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-116893 being exploited in the wild.

How severe is CVE-2026-116893?

Medium severity, with a CVSS score of 6.8, published 27 October 2026.

Is there a fix for CVE-2026-116893?

Yes: fixed in 5.21.5. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

How is CVE-2026-116893 attacked?

It is attacked over the network.

Am I affected by CVE-2026-116893?

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-2026-116893: REDAXO core missing authorization in package API

CVE-2026-116893 · Severity: medium · CVSS 6.8 · Published 2026-10-27

REDAXO is a content management system used to build and manage websites. The package API function, which manages system extensions and add-ons, failed to verify that users were administrators before allowing them to install, uninstall, activate, or deactivate packages. A demoted administrator or someone with a stolen session token could delete critical system add-ons like the structure module, destroying database tables and rendering the site non-functional.

Technologies: REDAXO Core. Vendors: REDAXO.

Quick answers

Is CVE-2026-116893 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-116893 being exploited in the wild.
How severe is CVE-2026-116893?: Medium severity, with a CVSS score of 6.8, published 27 October 2026.
Which products and versions are affected?: REDAXO Core before 5.21.5.
Is there a fix for CVE-2026-116893?: Yes: fixed in 5.21.5. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-116893 attacked?: It is attacked over the network.
Am I affected by CVE-2026-116893?: 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: 5.21.5

Technical details

The rex_api_package API function lacked authorization checks and only validated CSRF tokens, allowing any authenticated backend user with a valid token to execute package management operations. An attacker with a demoted admin session or a valid CSRF token obtained via another vulnerability could call the API to uninstall system add-ons (dropping database tables), deactivate packages, or delete non-system packages. The fix adds an admin permission check before allowing any package operation.

Affected products

REDAXO core before 5.21.5

Timeline

2026-10-27: disclosed
2026-10-06: patched: Fix released in version 5.21.5

References

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