CVE-2023-6551 Stored XSS in class.upload.php

2024-01-0416:04:34

CWE-20

CERT-PL

www.cve.org

cve-2023-6551

stored xss

class.upload.php

file upload validation

extension whitelisting

content-type

readme update

EPSS

Percentile

14.0%

JSON

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.

CNA Affected

[
  {
    "defaultStatus": "affected",
    "product": "class.upload.php",
    "repo": "https://github.com/verot/class.upload.php",
    "vendor": "class.upload.php",
    "versions": [
      {
        "lessThanOrEqual": "*",
        "status": "affected",
        "version": "0",
        "versionType": "semver"
      }
    ]
  }
]

References

cert.pl/en/posts/2024/01/CVE-2023-6551

cert.pl/posts/2024/01/CVE-2023-6551

EPSS

Percentile

14.0%

JSON

Related for CVELIST:CVE-2023-6551