Authentication Bypass Vulnerability in REDAXO Core by Redaxo
CVE-2026-117532

9.3CRITICAL

Key Information:

Vendor

Redaxo

Status
Core
Vendor
CVE Published:
27 October 2026

What is CVE-2026-117532?

The REDAXO Core versions prior to 5.21.4 exhibit an authentication bypass vulnerability in the structure/history plugin, enabling unauthenticated attackers to manipulate session-tied secrets. This flaw allows attackers to create forged temporary login tokens for admin accounts, gaining unauthorized backend access and executing code outside the controlled live environment. It highlights the necessity for regular security updates and scrutiny of session management features to prevent unauthorized access.

Affected Version(s)

core 5.3.0 < 5.21.4

core 5.21.4

References

https://github.com/redaxo/core/security/advisories/GHSA-p...
vendor-advisory
https://www.vulncheck.com/advisories/redaxo-core-5.3.0-be...
third-party-advisory

CVSS V4

Score:
9.3
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

V-C-Williams
.