File Resumable Upload security updates, in plain English

File Resumable Upload

1,707 sites report using it · on drupal.org · 1 security update explained here

This module adds the ability to upload large files in chunks or multiple files at once to image and file upload forms.

Below is every security update for File Resumable Upload 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.

File Resumable Upload

Moderately critical · 1,707 sites report using it · SA-CONTRIB-2026-338 · on drupal.org · Week of 11 November 2026

The module does not properly check who is allowed to use the upload forms. Anyone without logging in could start uploading files to forms they should not have access to and store partial files on the server. They could add data to the server but could not view any hidden information.

Who could do thisAnyone visiting the site. No login needed.
Does it apply to youAny site using this module.
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 File Resumable Upload to 2.0.6.

For developers: what the fix changed

The fix adds access checks to the `onBuildForm` methods in `src/EventSubscriber/BuildForm.php` and `modules/file_resup_media_library/src/EventSubscriber/BuildForm.php` to verify that the current user has permission to create or update the entity, or access the media library, before allowing the upload.

Also in this release The release also added a composer.json file, improved upload request handling, and updated field settings to be read as booleans.

2.0.5 to 2.0.6 2 commits, 11 files.

composer.json +30 −0
file_resup.module +1 −1 fix
file_resup.services.yml +1 −1 fix
js/file-resup.js +4 −0 fix
modules/file_resup_media_library/file_resup_media_library.services.yml +1 −1 fix
modules/file_resup_media_library/src/EventSubscriber/BuildForm.php +50 −22 fix
modules/file_resup_media_library/src/Form/MediaLibraryAddFormUploadAlter.php +2 −2 fix
src/Controller/UploadController.php +29 −14 fix
src/EventSubscriber/BuildForm.php +67 −42 fix
src/Form/FileFormAlterBase.php +10 −5 fix
src/Form/FileWidgetFormAlter.php +2 −2 fix

Full diff, 2.0.5 to 2.0.6

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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File Resumable Upload

File Resumable Upload

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