What is the CVSS score of CVE-2025-26776?

CVE-2025-26776 has a CVSS 3.1 base score of 10.0 (Critical). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H. EPSS exploitation probability: 0.2%.

Which versions of NotFound Chaty Pro are affected by CVE-2025-26776?

CVE-2025-26776 presents critical security risk, a unrestricted file upload vulnerability rated CVSS 10.0.

How to fix or mitigate CVE-2025-26776?

Within 24 hours: Identify all affected systems and apply vendor patches immediately. Review file handling controls and restrict upload directories.

NotFound Chaty Pro CVE-2025-26776

CRITICAL

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

2025-02-22 audit@patchstack.com

File Upload

10.0

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

10.0 CRITICAL

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

Attack Vector

Network

Attack Complexity

Low

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 - 18:27 vuln.today

CVE Published

Feb 22, 2025 - 16:15 nvd

CRITICAL 10.0

DescriptionCVE.org

Unrestricted Upload of File with Dangerous Type vulnerability in NotFound Chaty Pro allows Upload a Web Shell to a Web Server. This issue affects Chaty Pro: from n/a through 3.3.3.

AnalysisAI

Unrestricted Upload of File with Dangerous Type vulnerability in NotFound Chaty Pro allows Upload a Web Shell to a Web Server.3.3. Rated critical severity (CVSS 10.0), this vulnerability is remotely exploitable, no authentication required, low attack complexity. 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 Chaty Pro allows Upload a Web Shell to a Web Server.3.3. Version information: through 3.3.3..

Affected ProductsAI

NotFound Chaty Pro.

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.