openbullet2 up to 0.3.2 FileProxySource Proxy Loading Feature bat.ps1.sh os command injection

Summaryinfo

A vulnerability labeled as critical has been found in openbullet2 up to 0.3.2. This issue affects some unknown processing of the file bat.ps1.sh of the component FileProxySource Proxy Loading Feature. Executing a manipulation can lead to os command injection. The identification of this vulnerability is CVE-2026-25855. The attack may be launched remotely. There is no exploit available.

Detailsinfo

A vulnerability has been found in openbullet2 up to 0.3.2 and classified as critical. This vulnerability affects an unknown part of the file bat.ps1.sh of the component FileProxySource Proxy Loading Feature. The manipulation with an unknown input leads to a os command injection vulnerability. The CWE definition for the vulnerability is CWE-78. The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

OpenBullet2 through version 0.3.2 contains a remote code execution vulnerability that allows authenticated users to execute arbitrary commands by uploading script files (.bat.ps1.sh) through the FileProxySource proxy loading feature. Attackers can upload malicious script files as proxy sources, causing the server to execute the scripts and return output as proxy lines, resulting in arbitrary command execution on the host as the process user.

The weakness was shared by Maksim Rogov. The advisory is available at hackernoon.com. This vulnerability was named CVE-2026-25855 since 02/06/2026. The exploitation appears to be easy. The attack can be initiated remotely. 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 06/08/2026). This vulnerability is assigned to T1202 by the MITRE ATT&CK project.

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-2026-35134). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Name

• openbullet2

Version

• 0.3.0
• 0.3.1
• 0.3.2

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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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