What is CVE-2025-26776?

CVE-2025-26776 is a critical-severity vulnerability in Notfound Chaty Pro, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 10.0/10. Published 2025-02-22.

How severe is CVE-2025-26776?

Critical severity. CVSS v3 base score is 10.0 out of 10.

Is CVE-2025-26776 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Arbitrary file upload in Notfound Chaty Pro

CVE-2025-26776

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.

Vulnerability class: Unrestricted File Upload

EPSS: 0.006 (45.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 10.0 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H.

Affected products

Notfound Chaty Pro — versions n/a

Weakness classification (CWE)

CWE-434 — Unrestricted Upload of File with Dangerous Type

Public proof-of-concept exploits

20142995/nuclei-templates

References

audit@patchstack.com (vdb-entry)

Frequently asked questions

What is CVE-2025-26776?: CVE-2025-26776 is a critical-severity vulnerability in Notfound Chaty Pro, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 10.0/10. Published 2025-02-22.
How severe is CVE-2025-26776?: Critical severity. CVSS v3 base score is 10.0 out of 10.
Is CVE-2025-26776 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.