CVE-2025-57633

Severity: critical (CVSS 9.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2025-09-09 · updated 2026-06-17
Weakness: CWE-77

Description

A command injection vulnerability in FTP-Flask-python through 5173b68 allows unauthenticated remote attackers to execute arbitrary OS commands. The /ftp.html endpoint's "Upload File" action constructs a shell command from the ftp_file parameter and executes it using os.system() without sanitization or escaping.

References

https://gist.github.com/Spendroslav/1c0c6a6556992291b19c3178e3cb5885
https://github.com/ajaypp123/FTP-Flask-python/blob/5173b6828244ff9729fa29cc144d74ccbea30a73/ftp_app.py

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