# Booking Package <= 1.7.30 - Missing Authorization to Unauthenticated Paid Subscription Deactivation

- **ID:** WPSEC-2026-0940
- **Plugin:** Booking Package (`booking-package`), https://wordpress.org/plugins/booking-package/
- **Affected versions:** all versions before 1.7.31
- **Fixed in:** 1.7.31 (Update to 1.7.31 or later.)
- **Severity:** Medium 5.3 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N)
- **Weakness:** CWE-862
- **Usage among sites WPSec scans:** plugin Low, affected versions None seen (as of 2026-10-14)
- **Attack surface analysis:** https://attacksurface.wpsec.com/plugin/booking-package
- **Fix released:** 2026-10-13
- **Published:** 2026-10-14
- **URL:** https://wpsec.com/vuln/WPSEC-2026-0940/

## Description

The Booking Package plugin for WordPress is vulnerable to unauthorized modification of data in all versions up to, and including, 1.7.30, due to a missing capability check and missing nonce validation on the activatePaidSubscription function, which is registered for unauthenticated users through the 'booking-package-activate-subscription' admin-post action. This makes it possible for unauthenticated attackers to trigger a subscription lookup with customer and subscription IDs they choose. When the lookup fails, the plugin resets its stored subscription expiration date to 0, which disables the site's paid subscription features. When the lookup succeeds, the plugin's stored subscription settings are overwritten.

## References

- https://wpsec.com/vuln/WPSEC-2026-0940/
- https://plugins.svn.wordpress.org/booking-package/tags/1.7.31/
- https://wordpress.org/plugins/booking-package/

Source: WPSec, https://wpsec.com/vuln/WPSEC-2026-0940/

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.