MEDIUM

GHSA-hwj7-4vgc-j3v9

Amazon S3 for Craft CMS has an Information Disclosure vulnerability

Quick fix

GHSA-hwj7-4vgc-j3v9 — craftcms/aws-s3: upgrade to the fixed version with the command below.

composer require craftcms/aws-s3:^2.2.5

Details

Unauthenticated users can view a list of buckets the plugin has access to.

The `BucketsController->actionLoadBucketData()` endpoint allows unauthenticated users with a valid CSRF token to view a list of buckets that the plugin is allowed to see.

Users should update to version 2.2.5 of the plugin to mitigate the issue.

Are you affected?

Enter the version of the package you're using.

Affected packages

Packagist/craftcms/aws-s3

Introduced in: 2.0.2Fixed in: 2.2.5

Fixcomposer require craftcms/aws-s3:^2.2.5

References

https://github.com/craftcms/aws-s3/security/advisories/GHSA-hwj7-4vgc-j3v9[WEB]
https://nvd.nist.gov/vuln/detail/CVE-2026-32265[ADVISORY]
https://github.com/craftcms/aws-s3/commit/ef8904d8b6856e4a52893a9e1e52988ae110aa3f[WEB]
https://github.com/craftcms/aws-s3[PACKAGE]