CVE-2023-53950
Critical
Description
InnovaStudio WYSIWYG Editor 5.4 contains an unrestricted file upload vulnerability that allows attackers to bypass file extension restrictions through filename manipulation. Attackers can upload malicious ASP shells by using null byte techniques and alternate file extensions to circumvent upload controls in the asset manager.
SeverityCritical
CVSS9.8
Exploit probability—
ProductWYSIWYG Editor
PublishedDec 19, 2025
First seenDec 19, 2025
Weakness typeCWE-434Unrestricted upload of dangerous file type
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| innovastudio WYSIWYG Editor | v ≤ 5.4 | — |
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