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HIGH severity

CVE-2026-116898 — Redaxo

HIGH

CVE-2026-116898 is a high-severity (CVSS 7.1) CWE-639 vulnerability. No vendor fix is recorded yet; mitigation options are listed below.

REDAXO before 5.21.4 contains a missing authorization vulnerability in the media pool bulk move that checks only target category permission, ignoring the source category. Authenticated…

Published
Updated
Affected
—
Patched
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Exploits
None indexed
Exploitation data as of Oct 27, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

Description

REDAXO before 5.21.4 contains a missing authorization vulnerability in the media pool bulk move that checks only target category permission, ignoring the source category. Authenticated backend users with permission for one media category can move files from restricted categories into it, then silently replace their contents site-wide.

Detection & mitigation playbook

Vulnerability
  1. Detect

    Identify every host running the affected component and compare the installed build against the fixed version below — for source-built or distro-packaged software the version string, not a lockfile, is the source of truth (`dpkg -l`, `rpm -q`, or the binary's own `--version`).

  2. Remediation status

    No fixed release is recorded for CVE-2026-116898 yet. Track the upstream advisory, and apply the exposure-reduction steps below in the meantime.

  3. Mitigate without a patch

    Put an independent control in front of the weakness: restrict the affected endpoint or interface to trusted networks, require an additional authentication factor or proxy-level check, and invalidate existing sessions and credentials in case the flaw has already been used.

Frequently Asked Questions

REDAXO before 5.21.4 contains a missing authorization vulnerability in the media pool bulk move that checks only target category permission, ignoring the source category. Authenticated backend users with permission for one media category can move files from restricted categories into it, then silently replace their contents site-wide.
O3 Security · Impact-Aware SCA

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CVE-2026-116898: Redaxo (High 7.1)