Peter Brady, Drupal developer and private AI consultant

Drupal security updates, in plain English · Module

Mollie for Drupal

267 sites report using it · on drupal.org · 1 security update explained here

This module lets a website accept online payments using a specific payment provider.

Below is every security update for Mollie for Drupal 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.

Mollie for Drupal

Moderately critical · 267 sites report using it · 2 security fixes · Week of 11 November 2026

2 security fixes in one update. Mollie for Drupal fixed 2 separate security bugs at once: 1 information disclosure, 1 incorrect authorization. One update covers all of them. The most serious, SA-CONTRIB-2026-329, is explained here and the full list is at the end of the card.

The module can sometimes reveal the secret security token used to connect to the payment provider. Anyone without logging in could see this hidden token. They could not alter any information on the site.

  • Who could do thisAnyone visiting the site. No login needed.
  • Does it apply to youA site is affected if the webform part of the module is turned on.
  • 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 Mollie for Drupal to 2.3.2.

For developers: what the fix changed

This release carries 2 security fixes. The summary below is for SA-CONTRIB-2026-329, the most serious of them.

The fix adds a cryptographic signature to the redirect URL in `PaymentStorage.php` and verifies it in `RedirectController::paymentRedirect` to prevent unauthorized access. It also enforces context validation for transactions in `WebhookController.php` and `Mollie.php`.

Also in this release The release also fixes a plugin instantiation issue in the Mollie commerce payment gateway and adds automated tests.

2.3.1 to 2.3.2 4 commits, 8 files including 3 tests.

  • modules/mollie_commerce/src/Plugin/Commerce/PaymentGateway/Mollie.php +11 −1 fix
  • src/Controller/RedirectController.php +14 −1 fix
  • src/Controller/WebhookController.php +22 −13 fix
  • src/Entity/PaymentStorage.php +3 −1 fix
  • src/RedirectSignature.php +54 −0 fix

Full diff, 2.3.1 to 2.3.2

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

All 2 security bugs this update fixes, worst first. Each link is the drupal.org notice for that one.

Not sure what your site is running?

Send me your Drupal site's address.

I'll tell you what I can see from outside, what the Drupal 10 end of life on 9 December means for it, and what it would cost to have me keep it patched. There's no charge for that and no obligation. peter@peterbrady.co.uk

Get in touch

Tell me who you are, what your organisation does, and what you need. That might be a Drupal site that needs looking after, an upgrade to get done before December, or an agency that needs Drupal cover.

If I can help, I'll say so and suggest a call. If I can't, I'll tell you straight away rather than waste your time.

peter@peterbrady.co.uk

For context: I work mainly with UK membership bodies, charities and research organisations, and with the agencies that look after their websites. Not recruiters.

Or start smaller and connect with me on LinkedIn. That's where I post what I find digging around in charity and grants data, and where the free tools turn up first.

Peter Brady, Drupal developer and private AI consultant

PNB Technologies Limited
55 Yew Tree Road, Ormskirk
Lancashire, L39 1NT, United Kingdom

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