FTP-Flask-python /ftp.html os.system ftp_file command injection

Summaryinfo

A vulnerability described as critical has been identified in FTP-Flask-python. This issue affects the function os.system of the file /ftp.html. Such manipulation of the argument ftp_file leads to command injection. This vulnerability is documented as CVE-2025-57633. The attack can be executed remotely. There is not any exploit available.

Detailsinfo

A vulnerability, which was classified as critical, has been found in FTP-Flask-python (unknown version). Affected by this issue is the function os.system of the file /ftp.html. The manipulation of the argument ftp_file with an unknown input leads to a command injection vulnerability. Using CWE to declare the problem leads to CWE-77. The product constructs all or part of a command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended command when it is sent to a downstream component. Impacted is confidentiality, integrity, and availability. CVE summarizes:

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.

The advisory is available at github.com. This vulnerability is handled as CVE-2025-57633 since 08/17/2025. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. Technical details are known, but there is no available exploit. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 09/10/2025). This vulnerability is assigned to T1202 by the MITRE ATT&CK project.

By approaching the search of inurl:ftp.html it is possible to find vulnerable targets with Google Hacking.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2025-27500). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Type

• Programming Language Software

Name

• FTP-Flask-python

CPE 2.3info

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CPE 2.2info

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If you want to get best quality of vulnerability data, you may have to visit VulDB.

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