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

Source: https://junglewise.ai/threats/cve-2026-116895-redaxo-before-5-21-5-contains-a-cross-site-request-forgery  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-10-27. Updated: 2026-10-27  
License: CC BY 4.0 with a link back

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](https://junglewise.ai/threats/technologies/redaxo-core). Vendors: [REDAXO](https://junglewise.ai/threats/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

- [https://github.com/redaxo/core/security/advisories/GHSA-423v-8x3h-gxr3](https://github.com/redaxo/core/security/advisories/GHSA-423v-8x3h-gxr3)
- [https://www.vulncheck.com/advisories/redaxo-before-5.21.5-csrf-via-safe-mode-toggle-parameter](https://www.vulncheck.com/advisories/redaxo-before-5.21.5-csrf-via-safe-mode-toggle-parameter)

## Related threats

- [REDAXO reflected XSS in backend packages API](https://junglewise.ai/threats/cve-2026-117538-redaxo-before-5-21-0-contains-a-reflected-cross-site-scripting)
- [REDAXO core authentication bypass in structure/history plugin](https://junglewise.ai/threats/cve-2026-117532-redaxo-core-from-5-3-0-before-5-21-4-contains-an-authentication)
- [REDAXO broken access control in slice operations](https://junglewise.ai/threats/cve-2026-116899-redaxo-before-5-21-4-contains-a-broken-access-control)
- [REDAXO missing authorization in structure/version and structure/history previews](https://junglewise.ai/threats/cve-2026-116897-redaxo-core-before-5-21-4-contains-a-missing-authorization)
- [REDAXO core missing authorization in package API](https://junglewise.ai/threats/cve-2026-116893-redaxo-core-before-5-21-5-contains-a-missing-authorization)