What’s Vulnerable › Vulnerabilities

CVE-2023-53950: InnovaStudio WYSIWYG Editor 5.4 Unrestricted File Upload via Filename Manipulation

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.7% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-12-19 · updated 2026-06-17
• Weakness: CWE-434

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.

Affected products

• innovastudio WYSIWYG Editor: through 5.4

References

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

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