CVE-2025-57633Public exploitNetwork attack vector

Unauthenticated command execution via unsanitized upload path

Published Sep 9, 2025 · Updated Sep 10, 2025

Command injection in FTP-Flask-python through commit 5173b68 allows remote attackers to execute arbitrary OS commands without authentication. The /ftp.html Upload File branch concatenates the untrusted ftp_file form value into a cp command and passes the resulting string to os.system without validation or escaping. Any network client that can reach the Flask endpoint can run commands with the application's process privileges, enabling data access, modification, or service interruption.

CVSS severity9.8
Critical
EPSS probability1.43%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Command injection in FTP-Flask-python through commit 5173b68 allows remote attackers to execute arbitrary OS commands without authentication. The /ftp.html Upload File branch concatenates the untrusted ftp_file form value into a cp command and passes the resulting string to os.system without validation or escaping. Any network client that can reach the Flask endpoint can run commands with the application's process privileges, enabling data access, modification, or service interruption.

The record

CVE
CVE-2025-57633
Published
Sep 9, 2025
Updated
Sep 10, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-77, T1190, T1059.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 9, 2025CVE publishedPublication date reported by the CVE source.
  2. Sep 10, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

9.8CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-77Improper Neutralization of Special Elements used in a Command ('Command Injection')
T1190Exploit Public-Facing Application
T1059.004Unix Shell

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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