Missing Authorization Flaw in REDAXO Core by REDAXO
CVE-2026-116893

6.1MEDIUM

Key Information:

Vendor

Redaxo

Status
Core
Vendor
CVE Published:
27 October 2026

What is CVE-2026-116893?

The REDAXO Core prior to version 5.21.5 features a significant security flaw in the rex_api_package API function. This vulnerability permits unauthorized backend users to manage packages using only a valid CSRF token. Attackers who possess such tokens—potentially from demoted admins with active sessions—can execute critical actions, including uninstalling essential system addons and manipulating package states, which may lead to severe data loss or compromise the integrity of the system.

Affected Version(s)

core 0 < 5.21.5

core 5.21.5

References

https://github.com/redaxo/core/security/advisories/GHSA-f...
vendor-advisory
https://github.com/redaxo/core/commit/bd96cf27c2ab919b832...
patch
https://www.vulncheck.com/advisories/redaxo-core-before-5...
third-party-advisory

CVSS V4

Score:
6.1
Severity:
MEDIUM
Confidentiality:
None
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
Physical
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

AlpetGexha
.