What’s Vulnerable › Vulnerabilities

CVE-2026-40040: Pachno 1.0.6 Unrestricted File Upload Remote Code Execution

• Severity: high (CVSS 8.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-04-13 · updated 2026-10-26
• Weakness: CWE-434

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.

Affected products

• Pachno: 1.0.6

References

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

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