What is CVE-2026-116899?

CVE-2026-116899 is a medium-severity vulnerability in Redaxo Core, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 6.5/10. Published 2026-10-27.

How severe is CVE-2026-116899?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Auth bypass in Redaxo Core

CVE-2026-116899

REDAXO before 5.21.4 contains a broken access control vulnerability that allows authenticated editors to modify slices in unauthorized categories by pairing a permitted article with a foreign slice id. Attackers can abuse content/edit delete and edit functions or the content_slice_status and content_move_slice APIs to delete, toggle, move, or overwrite other editors' slices.

Vulnerability class: IDOR (Insecure Direct Object Reference)

Published 2026-10-27 · last modified 2026-10-27.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

Redaxo Core

Weakness classification (CWE)

CWE-639 — Authorization Bypass Through User-Controlled Key

References

github.com/redaxo/core/security/advisories/GHSA-5m63-c3qx-wq8v (vendor-advisory)
www.vulncheck.com/advisories/redaxo-before-5.21.4-broken-access-control-in-slic… (third-party-advisory)

Frequently asked questions

What is CVE-2026-116899?: CVE-2026-116899 is a medium-severity vulnerability in Redaxo Core, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 6.5/10. Published 2026-10-27.
How severe is CVE-2026-116899?: Medium severity. CVSS v3 base score is 6.5 out of 10.