GHSA-v6f4-jwv9-682w
class.upload.php allows cross-site scripting attacks via uploaded files
Packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| Packagist | verot/class.upload.php | <= 2.1.6 | no fix listed |
Details
As written in the advisory (Markdown source, shown as plain text).
As a simple library, class.upload.php does not perform an in-depth check on uploaded files, allowing a stored XSS vulnerability when the default configuration is used.
Developers must be aware of that fact and use extension whitelisting accompanied by forcing the server to always provide content-type based on the file extension.
The README has been updated to include these guidelines.
References
External links from the advisory. They lead to third-party sites.