CVE-2023-53950

CRITICAL 9.8

InnovaStudio WYSIWYG Editor 5.4 Unrestricted File Upload via Filename Manipulation

CVSS Score

9.8

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-434
Vendor	innovastudio
Product	wysiwyg editor
Published	Dec 19, 2025
Last Updated	Apr 7, 2026

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CVSS v3 Breakdown

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Affected Versions

innovastudio / WYSIWYG Editor

0 ≤ 5.4

References

NVD ↗ CVE.org ↗ EPSS Data ↗

exploit-db.com: https://www.exploit-db.com/exploits/51362 innovastudio.com: https://innovastudio.com vulncheck.com: https://www.vulncheck.com/advisories/innovastudio-wysiwyg-editor-unrestricted-file-upload-via-filename-manipulation

Credits

Zer0FauLT