Vulnerability Details : CVE-2023-6551
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.
Vulnerability category: Cross site scripting (XSS)
Products affected by CVE-2023-6551
- cpe:2.3:a:verot:class.upload.php:-:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2023-6551
0.05%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 20 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2023-6551
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
5.4
|
MEDIUM | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N |
2.3
|
2.7
|
NIST | 2024-01-11 |
CWE ids for CVE-2023-6551
-
The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.Assigned by: cvd@cert.pl (Secondary)
-
The product allows the upload or transfer of dangerous file types that are automatically processed within its environment.Assigned by:
- cvd@cert.pl (Secondary)
- nvd@nist.gov (Primary)
References for CVE-2023-6551
-
https://cert.pl/en/posts/2024/01/CVE-2023-6551
Vulnerability in class.upload.php open source library | CERT PolskaThird Party Advisory
-
https://cert.pl/posts/2024/01/CVE-2023-6551
Podatność w bibliotece class.upload.php | CERT PolskaThird Party Advisory
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