# Patreon WordPress <= 1.9.17 - Unauthenticated Open Redirect via 'final_redirect_uri' State Parameter

- **ID:** WPSEC-2026-0679
- **Plugin:** Patreon WordPress (`patreon-connect`), https://wordpress.org/plugins/patreon-connect/
- **Affected versions:** all versions before 1.10.0
- **Fixed in:** 1.10.0 (Update to 1.10.0 or later.)
- **Severity:** Medium 4.7 (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:N/A:N)
- **Weakness:** CWE-601
- **Usage among sites WPSec scans:** plugin Low, affected versions Low (as of 2026-10-08)
- **Attack surface analysis:** https://attacksurface.wpsec.com/plugin/patreon-connect
- **Fix released:** 2026-10-07
- **Published:** 2026-10-08
- **URL:** https://wpsec.com/vuln/WPSEC-2026-0679/

## Description

The patreon-connect plugin for WordPress is vulnerable to Open Redirect in all versions up to, and including, 1.9.17 due to insufficient validation of the 'final_redirect_uri' value in the request-supplied OAuth 'state' parameter in the OAuth callback handler. This makes it possible for unauthenticated attackers to redirect users to potentially malicious sites if they can successfully trick them into performing an action such as clicking on a link.

## References

- https://wpsec.com/vuln/WPSEC-2026-0679/
- https://plugins.svn.wordpress.org/patreon-connect/tags/1.10.0/
- https://wordpress.org/plugins/patreon-connect/

Source: WPSec, https://wpsec.com/vuln/WPSEC-2026-0679/

License: CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). Free to use, share and adapt, also commercially, if you credit WPSec and link to this advisory.