View online: https://www.drupal.org/sa-contrib-2026-300 Project: AlternativeCommerce PayPal Checkout [1] Project machine name: basket_paypal Date: 2026-November-04 Security risk: *Moderately critical* 13 ∕ 25 AC:Basic/A:None/CI:None/II:Some/E:Theoretical/TD:All [2] Vulnerability: Access bypass Affected versions: <1.1.1 || >=2.0.0 <2.0.0-beta2 CVE IDs: CVE-2026-122069 Description:  The AlternativeCommerce PayPal Checkout module provides an AlternativeCommerce method to embed payment services from PayPal. The module does not sufficiently validate incoming PayPal webhook requests. An unauthenticated attacker can submit a crafted request that references a payment record, causing the associated order to be marked as paid without completing a payment. Solution:  Install the latest version: * Upgrade to AlternativeCommerce PayPal 1.1.1 [3]. Reported By:  * Marcus Johansson (marcus_johansson) [4] Fixed By:  * Helena Zajika (helena zajika) [5] Coordinated By:  * Swan Kalata (akalata) [6] of the Drupal Security Team * Juraj Nemec (poker10) [7] of the Drupal Security Team * Jess (xjm) [8] of the Drupal Security Team ------------------------------------------------------------------------------ Contribution record [9] [1] https://www.drupal.org/project/basket_paypal [2] https://www.drupal.org/drupal-security-team/security-risk-levels-defined [3] https://www.drupal.org/project/basket_paypal/releases/1.1.1 [4] https://www.drupal.org/u/marcus_johansson [5] https://www.drupal.org/u/helena-zajika [6] https://www.drupal.org/u/akalata [7] https://www.drupal.org/u/poker10 [8] https://www.drupal.org/u/xjm [9] https://new.drupal.org/contribution-record?source_link=https%3A//www.drupal....