CVE-2026-40040 — HIGH (8.8)

Vulnerability 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 Score

8.8

HIGH

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

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Related Weaknesses (CWE)

CWE-434

References

FAQ

What is CVE-2026-40040?

CVE-2026-40040 is a vulnerability with a CVSS score of 8.8 (HIGH). 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....

How severe is CVE-2026-40040?

CVE-2026-40040 has been rated HIGH with a CVSS base score of 8.8/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-40040?

Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.