CVE-2026-116895: REDAXO cross-site request forgery in safe mode toggle

CVE-2026-116895 · Severity: medium · CVSS 5.4 · Published 2026-10-27

REDAXO is a content management system used to manage website content and administration. A flaw in the safe mode toggle feature allows attackers to trick logged-in administrators into clicking a link that disables security protections or blocks backend addons. An attacker could silently revert intentional safe mode configurations or lock administrators out of addon management for their session.

Technologies: REDAXO Core. Vendors: REDAXO.

Quick answers

Is CVE-2026-116895 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-116895 being exploited in the wild.
How severe is CVE-2026-116895?
Medium severity, with a CVSS score of 5.4, published 27 October 2026.
Which products and versions are affected?
REDAXO Core before 5.21.5.
Is there a fix for CVE-2026-116895?
Yes: fixed in 5.21.5. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-116895 attacked?
It is attacked over the network, in a web application.
Am I affected by CVE-2026-116895?
Check whether you run REDAXO Core at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

How to fix

  • Fixed in: 5.21.5

Technical details

The vulnerability is a cross-site request forgery (CSRF) flaw in REDAXO's backend that processes the safemode GET parameter (index.php?safemode=0 or safemode=1) without validating a CSRF token. An unauthenticated attacker can craft a link that, when visited by a logged-in administrator, toggles safe mode; the attack works because the session cookie uses default SameSite=Lax. Exploitation requires an administrator to be logged in and the installation to not be in live mode; an attacker gains the ability to disable global safe mode settings or disable addons within a session, with no privilege escalation or data confidentiality impact.

Affected products

  • REDAXO core before 5.21.5

Timeline

  • 2026-10-06: disclosed
  • 2026-10-27: advisory

References

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