Attachment Checker for Confluence
Checks Confluence attachments by file type, scans uploads for viruses, and enforces space quotas.
Akeles ConsultingRestrict file uploads in Confluence using file-extension rules for the instance, spaces, groups, users, and anonymous users.

Attachment Filter for Confluence sets which file extensions can be uploaded to Confluence. Rules can apply globally, to individual spaces, to user groups or users, and to anonymous users. When an upload is disallowed under the applicable rule, the upload stops and an error message identifies acceptable file types. Filtering uses file extensions and does not examine file contents.
Set a global whitelist of file extensions accepted for attachments.
Specify permitted file extensions for individual Confluence spaces.
Set rules for user groups and users that can override the global rule.
Configure a distinct file-extension rule for anonymous users.
Stop uploads that violate the applicable rule and show an error message about acceptable file types.
Apply extension filtering wherever users can attach files, including the Attachment macro.
97 plugins in Confluence · Security and compliance
Price distribution: 26 free, 22 freemium, 49 paid
Checks Confluence attachments by file type, scans uploads for viruses, and enforces space quotas.
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Crenwiz«Attachment Filter for Confluence lets you specify file types which are allowed to be uploaded into Confluence. Based on individually defined file extensions and a whitelist mechanism, you can set up rules for different scopes: The global filter rule defines the general set of file extensions which can be uploaded in a …»