Media Bulk Upload security updates, in plain English

Media Bulk Upload

18,194 sites report using it · on drupal.org · 1 security update explained here

This module enables users to upload files and create media items in bulk.

Below is every security update for Media Bulk 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.

Media Bulk Upload

Moderately critical · 18,194 sites report using it · SA-CONTRIB-2026-243 · on drupal.org · Week of 21 October 2026

The module does not sufficiently check user access rights to create specific media types if the bulk upload form is configured for that media type. An ordinary account on the site could alter or add new media items. They could not view any restricted information.

Who could do thisOnly someone with a login on your site.
Does it apply to youAn attacker must have a role with the bulk upload form access right.
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 Media Bulk Upload to 3.0.6.

For developers: what the fix changed

The fix adds checks to ensure the user has permission to create specific media types. This is implemented in `MediaBulkUploadController::accessForm` to verify if the user can create any of the configured media types, and in `MediaBulkUploadForm` to filter allowed extensions and validate permissions during file processing.

Also in this release Added GitLab CI, updated documentation, defined a canonical route for media bulk config, and improved code formatting.

3.0.5 to 3.0.6 5 commits, 28 files.

.cspell-project-words.txt +6 −0
.gitlab-ci.yml +33 −0
README.md +20 −29
composer.json +2 −2
config/schema/media_bulk_config.schema.yml +1 −1
media_bulk_upload.info.yml +1 −1
media_bulk_upload.install +7 −2
media_bulk_upload.links.contextual.yml +1 −1
media_bulk_upload.links.menu.yml +5 −5
media_bulk_upload.links.task.yml +1 −1
media_bulk_upload.module +3 −5
media_bulk_upload.permissions.yml +2 −2

Full diff, 3.0.5 to 3.0.6

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

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.

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.

Media Bulk Upload

Media Bulk Upload

Send me your Drupal site's address.

Get in touch

Links

Reference