REDAXO core before 5.21.4 contains a missing authorization vulnerability in the structure/version and
Source GCVE Database
Not known to be exploited · CVSS 7.1 High : upgrade to 5.21.4 soon.
Data as of 27 Oct 2026, 13:27 UTC
- 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:NExploitation evidence
Disclosed: evidence found.
CVE published 27 Oct 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by 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
| Product | Affected | Fixed in |
|---|---|---|
| redaxocore | Affected
| Fixed in
|
GitHubredaxo/corepkg:github/redaxo/coreOther threats | Affected
| Fixed in
|
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for the previewed article, allowing any backend user or users with the history[article_rollback] permission to access unpublished, historic, or deleted content by manipulating preview parameters.