CVE-2026-40040HIGH 8.8EPSS p37.2%

CVE-2026-40040CVE-2026-40040

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.

Scoring

CVSS 3.18.8 (HIGH)
VectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS0.47% probability of exploitation · percentile 37.2% · 2026-06-19T12:03:05Z
Published2026-04-13
Last modified2026-04-17

Underlying weaknesses· 1

CWE-434

References

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

1

TypeTargetConfidenceTier
WeaknessUnrestricted Upload of File with Dangerous Typecwe-4340%live

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Sourced from NVD + FIRST.org EPSS. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.