Peter Brady, Drupal developer and private AI consultant

Drupal security updates, in plain English · Module

Advanced Filesystem

on drupal.org · 1 security release explained here

It turns the file storage of a website into a manageable and observable system.

Below is every security release for Advanced Filesystem 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.

Advanced Filesystem

Moderately critical · no install count published · SA-CONTRIB-2026-217 · on drupal.org · Week of 7 October 2026

It turns the file storage of a website into a manageable and observable system.

A malicious website could trick a logged in visitor into making unwanted changes. Someone could trigger a system backup or alter some data. They could not see any hidden information.

  • Who could do thisAnyone visiting the site. No login needed.
  • Does it apply to youA site is affected if the advanced filesystem backup feature is enabled.
  • 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 Advanced Filesystem to 1.0.28.

For developers: what the fix changed

The fix adds a CSRF token requirement to multiple administrative route definitions within the advanced filesystem backup routing configuration.

1.0.27 to 1.0.28 1 commit, 1 file.

  • modules/advanced_filesystem_backup/advanced_filesystem_backup.routing.yml +6 −0 fix

Full diff, 1.0.27 to 1.0.28

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

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 charities, membership bodies 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
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