What’s Vulnerable › Vulnerabilities

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

• Severity: medium (CVSS 6.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-10-27 · updated 2026-10-27
• Weakness: CWE-862

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

• redaxo core: before 5.21.5 — fixed in 5.21.5

How to fix

Upgrade to a fixed version: redaxo core 5.21.5. Check the vendor advisory for mitigations.

References

• https://github.com/redaxo/core/commit/bd96cf27c2ab919b8320264c9f5502753aa82f28
• https://github.com/redaxo/core/security/advisories/GHSA-fw98-549m-whxx
• https://www.vulncheck.com/advisories/redaxo-core-before-5.21.5-missing-authorization-in-rex-api-package-api

Get alerted when CVE-2026-116893 or the next vulnerability affects your stack