Azure Blob Storage for Craft CMS Potential Sensitive Information Disclosure vulnerability
Unauthenticated users can view a list of buckets the plugin has access to.
The DefaultController->actionLoadContainerData() endpoint allows unauthenticated users with a valid CSRF token to view a list of buckets that the plugin is allowed to see.
Because Azure can return sensitive data in error messages, additional attack vectors are also exposed.
Users should update to version 2.1.1 of the plugin to mitigate the issue.
Affected software
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| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| Composer package | craftcms/azure-blob | >= 2.0.0-beta.1, < 2.1.1 | 2.1.1 |
References
- CVSS vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N- Weakness (CWE)
CWE-862- Platform
- Composer
- Package
craftcms/azure-blob- Disclosed
- 16.03.2026
- Updated
- 11.10.2026 10:22
Sources and licenses
OSV / GitHub Advisory Database - GHSA-q6fm-p73f-x862 - CC BY 4.0
Vulnerability history: craftcms/azure-blob
All published vulnerabilities of this package (Composer package), newest first. Shows whether this is a one-off slip or a package that needs watching.
This is the only known vulnerability of this package.
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