CVE-2023-6551
Last modified
CVE-2023-6551 is a medium-severity vulnerability rated 5.4/10 on the CVSS scale. 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. EPSS estimates a 0.44% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Verot | Class.Upload.Php | All versions |
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
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
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How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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