VULNERABILITY INTELLIGENCE

CVE-2023-6551

CVSS score5.4 MEDIUM
EPSS probability0.44%
CISA KEVNot currently listed
Published2024-01-04
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/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.

Weakness classification

  • cvd@cert.pl: CWE-434
  • nvd@nist.gov: CWE-434
  • 134c704f-9b21-4f2e-91b3-4a467353bcc0: CWE-434

Primary references