MobSF Mobile-Security-Framework-MobSF 4.4.0 Download File /download/ os.path.commonprefix path traversal

Summaryinfo

A vulnerability was found in MobSF Mobile-Security-Framework-MobSF 4.4.0. It has been classified as critical. Affected is the function os.path.commonprefix of the file /download/ of the component Download File Handler. The manipulation leads to path traversal. This vulnerability is referenced as CVE-2025-58161. Remote exploitation of the attack is possible. No exploit is available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in MobSF Mobile-Security-Framework-MobSF 4.4.0. It has been rated as critical. This issue affects the function os.path.commonprefix of the file /download/ of the component Download File Handler. The manipulation with an unknown input leads to a path traversal vulnerability. Using CWE to declare the problem leads to CWE-22. The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. Impacted is confidentiality. The summary by CVE is:

MobSF is a mobile application security testing tool used. In version 4.4.0, the GET /download/ route uses string path verification via os.path.commonprefix, which allows an authenticated user to download files outside the DWD_DIR download directory from "neighboring" directories whose absolute paths begin with the same prefix as DWD_DIR (e.g., .../downloads_bak, .../downloads.old). This is a Directory Traversal (escape) leading to a data leak. This issue has been patched in version 4.4.1.

The advisory is shared at github.com. The identification of this vulnerability is CVE-2025-58161 since 08/27/2025. The exploitation is known to be easy. The attack may be initiated remotely. Technical details are known, but no exploit is available. MITRE ATT&CK project uses the attack technique T1006 for this issue.

Upgrading to version 4.4.1 eliminates this vulnerability. The upgrade is hosted for download at github.com. Applying the patch 7f3bc086c028c1b50889cab8a15f7b59b7abdaf9 is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2025-26369). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Vendor

• MobSF

Name

• Mobile-Security-Framework-MobSF

Version

• 4.4.0

License

• open-source

Website

• Product: https://github.com/MobSF/Mobile-Security-Framework-MobSF/

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Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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