CVE-2023-6551 — MEDIUM (5.4)

Vulnerability 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.

CVSS Score

5.4

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

REQUIRED

Scope

CHANGED

Confidentiality

LOW

Integrity

LOW

Availability

NONE

Affected Products

Vendor	Product	Versions
Verot	Class.Upload.Php	-

Related Weaknesses (CWE)

CWE-434

References

https://cert.pl/en/posts/2024/01/CVE-2023-6551Third Party Advisory
https://cert.pl/posts/2024/01/CVE-2023-6551Third Party Advisory
https://cert.pl/en/posts/2024/01/CVE-2023-6551Third Party Advisory
https://cert.pl/posts/2024/01/CVE-2023-6551Third Party Advisory

FAQ

What is CVE-2023-6551?

CVE-2023-6551 is a vulnerability with a CVSS score of 5.4 (MEDIUM). 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 t...

How severe is CVE-2023-6551?

CVE-2023-6551 has been rated MEDIUM with a CVSS base score of 5.4/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2023-6551?

Check the references section above for vendor advisories and patch information. Affected products include: Verot Class.Upload.Php.