CVE-2026-40040

HIGH EPSS 37.4%

Published Apr 13, 20262mo ago · Modified Jun 17, 20261w ago

8.7 CVSS 4.0

High

Published Apr 13, 2026 2mo ago

Last Modified Jun 17, 2026 1w ago

Description

Pachno 1.0.6 contains an unrestricted file upload vulnerability that allows authenticated users to upload arbitrary file types by bypassing ineffective extension filtering to the /uploadfile endpoint. Attackers can upload executable files .php5 scripts to web-accessible directories and execute them to achieve remote code execution on the server.

CVSS Details

Base Score

8.7

Exploitability

—

Impact

—

Vector string

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Attack Vector Network

Attack Complexity Low

Privileges Required Low

User Interaction None

Scope X

Threat Intelligence

EPSS Exploit Probability

37.4% percentile

Exploit & Patch Status

No Known Exploit

No Patch Available

Weaknesses 1

CWE-434 Unrestricted Upload of File with Dangerous Type Resource Mgmt

References 2

vulncheck.com https://www.vulncheck.com/advisories/pachno-unrestricted-file-upload-remote-code-execution
zeroscience.mk https://www.zeroscience.mk/en/vulnerabilities/ZSL-2026-5982.php

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.