Vulnerability · Published Oct 27, 2026 · Assigned by VulnCheck

CVE-2026-117532REDAXO Core 5.3.0 before 5.21.4 Authentication Bypass via History Plugin

Critical 9.8

In plain English

A critical-severity improper authentication 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 0.7% (higher than 53% of all known vulnerabilities). Ready-made attack tooling exists: public proof-of-concept code.

Severity (CVSS 3.1)9.8Critical

Exploit odds (30 days)0.7%top 47.5% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack tooling1Public PoC

Official description

REDAXO core from 5.3.0 before 5.21.4 contains an authentication bypass vulnerability in the structure/history plugin that allows unauthenticated attackers to forge temporary login tokens. Attackers can force the session-tied secret into a predictable state and forge tokens for accounts like admin, gaining backend access and code execution outside live mode.

Affected products (as reported)

Vendor	Product	Versions
redaxo	core	5.3.0 – before 5.21.4

Weakness: CWE-287 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References

GitHub Security Advisory (GHSA-px8f-whj8-hrpq) vendor-advisory
VulnCheck Advisory: REDAXO Core 5.3.0 before 5.21.4 Authentication Bypass via History Plugin third-party-advisory