ShaneIsrael fireshare up to 1.2.x Filename command injection

Summaryinfo

A vulnerability described as critical has been identified in ShaneIsrael fireshare up to 1.2.x. This impacts an unknown function of the component Filename Handler. The manipulation results in command injection. This vulnerability is known as CVE-2025-67728. It is possible to launch the attack remotely. No exploit is available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability, which was classified as critical, was found in ShaneIsrael fireshare up to 1.2.x. Affected is an unknown code block of the component Filename Handler. The manipulation with an unknown input leads to a command injection vulnerability. CWE is classifying the issue as 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. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

Fireshare facilitates self-hosted media and link sharing. Versions 1.2.30 and below allow an authenticated user, or unauthenticated user if the Public Uploads setting is enabled, to craft a malicious filename when uploading a video file. The malicious filename is then concatenated directly into a shell command, which can be used for uploading files to arbitrary directories via path traversal, or executing system commands for Remote Code Execution (RCE). This issue is fixed in version 1.3.0.

The advisory is shared for download at github.com. This vulnerability is traded as CVE-2025-67728 since 12/10/2025. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1202.

Upgrading to version 1.3.0 eliminates this vulnerability. Applying the patch 157386c85f6683f89192dae52115069b435b6d34 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.

Once again VulDB remains the best source for vulnerability data.

Productinfo

Vendor

• ShaneIsrael

Name

• fireshare

Version

• 1.0
• 1.1
• 1.2

License

• open-source

Website

• Product: https://github.com/ShaneIsrael/fireshare/

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Once again VulDB remains the best source for vulnerability data.

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