Commerce PayPal security updates, in plain English

Commerce PayPal

9,116 sites report using it · on drupal.org · 1 security update explained here

This module allows a website to take payments through PayPal.

Below is every security update for Commerce PayPal that this site has covered, newest first. Each one says who could exploit it, whether it applies to your site, how urgent it is, and what to tell your developer. If your site uses this module and you are not sure which version, that is the first question to ask whoever looks after it.

Commerce PayPal

Moderately critical · 9,116 sites report using it · SA-CONTRIB-2026-095 · on drupal.org · Week of 12 August 2026

A visitor could trick the website into recording an order as paid when no money had actually been transferred. They could create false payment records in the system. They could not read any private information belonging to other customers.

Who could do thisAnyone visiting the site. No login needed.
Does it apply to youThis applies to sites using the Payflow Link payment method.
Has it been used in attacksNo sign of it.
How urgentDrupal rates this moderately critical. Include it in your next routine update, within the month.

Tell your developerUpdate Commerce PayPal to 2.1.3 or 8.x-1.12, whichever branch you are on.

For developers: what the fix changed

The fix adds validation in the `onReturn` method of `PayflowLink.php` by verifying the `SECURETOKEN` against the order data and making a server-to-server API request to PayPal to confirm the transaction details and amount before creating the payment.

Also in this release Modernised logging to use `json_encode` instead of `print_r` and fixed PHPStan issues in `CreditMessaging.php`.

2.1.2 to 2.1.3 2 commits, 2 files.

src/Plugin/Commerce/PaymentGateway/PayflowLink.php +67 −29 fix
src/Plugin/views/area/CreditMessaging.php +8 −31

Full diff, 2.1.2 to 2.1.3 · Full diff, 8.x-1.11 to 8.x-1.12

The comparison is against the release immediately before the fix. If your site is on an older release, more will have changed.

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Commerce PayPal

Commerce PayPal

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Reference