CVE-2023-53950 InnovaStudio WYSIWYG Editor 5.4 Unrestricted File Upload via Filename Manipulation
Attackers can upload malicious ASP shells by bypassing file extension restrictions in the asset manager, leading to remote code execution.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2023-53950?
CVE-2023-53950 is a critical vulnerability in innovastudio WYSIWYG Editor, published on 19 Dec 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official 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.
Weakness: CWE-434
Which versions are affected by CVE-2023-53950?
How do I fix CVE-2023-53950?
No fix has been published for CVE-2023-53950 yet. Limit exposure of the affected software until one is available.
Is CVE-2023-53950 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-53950 exists.
Sources
Also known as GHSA-cjf9-p6jj-3g6r.