Vulnerability · Published Oct 27, 2026 · Assigned by VulnCheck

CVE-2026-116893REDAXO core before 5.21.5 Missing Authorization in rex_api_package API

Medium 6.8

In plain English

A medium-severity missing authorization in core from redaxo. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 17% of all known vulnerabilities).

Severity (CVSS 3.1)6.8Medium

Exploit odds (30 days)0.3%top 83.3% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

REDAXO core before 5.21.5 contains a missing authorization vulnerability in the rex_api_package API function that lets non-admin backend users manage packages with only a valid CSRF token. Attackers holding a token, such as demoted admins with active sessions, can uninstall system addons like structure (dropping their database tables), deactivate, install, or activate packages, and delete non-system packages.

Affected products (as reported)

Vendor	Product	Versions
redaxo	core	0 – before 5.21.5

Weakness: CWE-862 · Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:H

References

GitHub Security Advisory (GHSA-fw98-549m-whxx) vendor-advisory
https://github.com/redaxo/core/commit/bd96cf27c2ab919b8320264c9f5502753aa82f28 patch
VulnCheck Advisory: REDAXO core before 5.21.5 Missing Authorization in rex_api_package API third-party-advisory