verot/class.upload.php · Security
class.upload.php allows cross-site scripting attacks via uploaded files
- GHSA ID
- GHSA-v6f4-jwv9-682w
- CVE ID
- CVE-2023-6551
- Severity
- medium
- Published
- Updated
- CVSS
- 6.5 · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
- CVSS v3
- 6.5 · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Description
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.
CWEs
- CWE-20 · Improper Input Validation
- CWE-434 · Unrestricted Upload of File with Dangerous Type