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CVE-2026-116897VulnerabilityPublished

REDAXO core before 5.21.4 contains a missing authorization vulnerability in the structure/version and

Source GCVE Database

0
Authoritative record:CVE-2026-116897· High 7.1

Not known to be exploited · CVSS 7.1 High : upgrade to 5.21.4 soon.

Data as of 27 Oct 2026, 13:27 UTC

CVSS 4.0 base score
7.1High
How severe the flaw is on the 0–10 CVSS scale.
Patch
Available – fixed in 5.21.4
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 27 Oct 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

What to do

Upgrade core and redaxo/core to 5.21.4.

Affected software

ProductAffectedFixed in
redaxocoreAffected
  • <5.21.4
Fixed in
  • 5.21.4
GitHubredaxo/corepkg:github/redaxo/coreOther threatsAffected
  • <5.21.4
Fixed in
  • 5.21.4

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

A fix is available in REDAXO core version 5.21.4. Users should upgrade to version 5.21.4 or later to remediate this vulnerability. No other mitigation guidance is provided or required.

Description

REDAXO core versions before 5.21.4 have a missing authorization vulnerability in the structure/version and structure/history frontend preview modes. These modes fail to verify category or clang permissions for the previewed article, allowing any backend user or users with the history[article_rollback] permission to access unpublished, historic, or deleted content by manipulating preview parameters.

References

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