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CVE-2026-32265: Amazon S3 for Craft CMS has an Information Disclosure vulnerability

• Severity: medium (CVSS 6.9 v4.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-03-18 · updated 2026-06-17
• Weakness: CWE-200

Description

The Amazon S3 for Craft CMS plugin provides an Amazon S3 integration for Craft CMS. In versions 2.0.2 through 2.2.4, 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.

Affected products

• craftcms aws-s3: from 2.0.2, < 2.2.5

References

• https://github.com/craftcms/aws-s3/commit/ef8904d8b6856e4a52893a9e1e52988ae110aa3f
• https://github.com/craftcms/aws-s3/security/advisories/GHSA-hwj7-4vgc-j3v9

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