# WP2LEADS |  WordPress und KlickTipp einfach verbinden – WooCommerce und KlickTipp einfach verbinden <= 3.5.6 - Unauthenticated Missing Authorization to Cron REST API Actions

- **ID:** WPSEC-2026-1720
- **Plugin:** WP2LEADS |  WordPress und KlickTipp einfach verbinden – WooCommerce und KlickTipp einfach verbinden (`wp2leads`), https://wordpress.org/plugins/wp2leads/
- **Affected versions:** all versions before 3.5.12
- **Fixed in:** 3.5.12 (Update to 3.5.12 or later.)
- **Severity:** Medium 6.5 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N)
- **Weakness:** CWE-862
- **Usage among sites WPSec scans:** plugin Low, affected versions Low (as of 2026-10-27)
- **Attack surface analysis:** https://attacksurface.wpsec.com/plugin/wp2leads
- **Fix released:** 2026-10-26
- **Published:** 2026-10-27
- **URL:** https://wpsec.com/vuln/WPSEC-2026-1720/

## Description

The WP2LEADS plugin for WordPress is vulnerable to unauthorized access via the wp2leads/v1/cron REST API endpoint in all versions up to, and including, 3.5.6. This is due to the permission callback returning true for any allowed action without checking an access key or the requester's capabilities. This makes it possible for unauthenticated attackers to call the 'prepare_for_transfer' action, which returns a map's stored KlickTipp API configuration, and the 'transfer' action, which forces a license re-check that updates the stored license data.

## References

- https://wpsec.com/vuln/WPSEC-2026-1720/
- https://plugins.svn.wordpress.org/wp2leads/tags/3.5.12/
- https://wordpress.org/plugins/wp2leads/

Source: WPSec, https://wpsec.com/vuln/WPSEC-2026-1720/

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.