What is the CVSS score of CVE-2025-23921?

CVE-2025-23921 has a CVSS 3.1 base score of 9.0 (Critical). CVSS vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H. EPSS exploitation probability: 0.3%.

Which versions of NotFound Multi Uploader are affected by CVE-2025-23921?

CVE-2025-23921 presents critical security risk, a unrestricted file upload vulnerability rated CVSS 9.0.

How to fix or mitigate CVE-2025-23921?

Within 7 days: Identify all affected systems and apply vendor patches promptly. Review file handling controls and restrict upload directories.

NotFound Multi Uploader CVE-2025-23921

CRITICAL

Unrestricted Upload of File with Dangerous Type (CWE-434)

2025-01-22 audit@patchstack.com

File Upload

9.0

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

9.0 CRITICAL

AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

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

Attack Vector

Network

Attack Complexity

High

Privileges Required

None

User Interaction

None

Scope

Changed

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

Re-analysis Queued

Apr 23, 2026 - 15:42 vuln.today

cvss_changed

Analysis Generated

Mar 28, 2026 - 18:05 vuln.today

CVE Published

Jan 22, 2025 - 15:15 nvd

CRITICAL 9.0

DescriptionCVE.org

Unrestricted Upload of File with Dangerous Type vulnerability in NotFound Multi Uploader for Gravity Forms allows Upload a Web Shell to a Web Server. This issue affects Multi Uploader for Gravity Forms: from n/a through 1.1.3.

AnalysisAI

Unrestricted Upload of File with Dangerous Type vulnerability in NotFound Multi Uploader for Gravity Forms allows Upload a Web Shell to a Web Server.1.3. Rated critical severity (CVSS 9.0), this vulnerability is remotely exploitable, no authentication required. No vendor patch available.

Technical ContextAI

This vulnerability is classified as Unrestricted File Upload (CWE-434), which allows attackers to upload malicious files that can be executed on the server. Unrestricted Upload of File with Dangerous Type vulnerability in NotFound Multi Uploader for Gravity Forms allows Upload a Web Shell to a Web Server.1.3. Version information: through 1.1.3..

Affected ProductsAI

NotFound Multi Uploader for Gravity Forms.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Validate file types server-side, store uploads outside webroot, use random filenames, scan for malware.