horde Vfs up to 3.0.0 SMB Driver _escapeShellCommand filename os command injection

Summaryinfo

A vulnerability classified as very critical was found in horde Vfs up to 3.0.0. This affects the function _escapeShellCommand of the component SMB Driver. The manipulation of the argument filename results in os command injection. This vulnerability is known as CVE-2026-60102. It is possible to launch the attack remotely. No exploit is available.

Detailsinfo

A vulnerability, which was classified as very critical, was found in horde Vfs up to 3.0.0. Affected is the function _escapeShellCommand of the component SMB Driver. The manipulation of the argument filename with an unknown input leads to a os command injection vulnerability. CWE is classifying the issue as 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. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

Horde Virtual File System (VFS) API before 3.0.1 contains an OS command injection vulnerability in the Horde_Vfs_Smb driver where the _escapeShellCommand() method fails to sanitize command substitution sequences, allowing authenticated attackers to inject arbitrary shell commands through user-controlled filenames. Attackers can supply malicious filenames containing unescaped command substitution payloads through operations such as file upload, folder creation, rename, or deletion, which are interpolated into a double-quoted shell context and executed via proc_open() through /bin/sh -c before smbclient runs, resulting in arbitrary command execution on the underlying system.

The advisory is available at github.com. This vulnerability is traded as CVE-2026-60102 since 07/08/2026. The exploitability is told to be easy. It is possible to launch the attack 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 07/08/2026). This vulnerability is assigned to T1202 by the MITRE ATT&CK project.

Upgrading to version 3.0.1 eliminates this vulnerability.

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Productinfo

Type

• Groupware Software

Vendor

• horde

Name

• Vfs

Version

• 3.0

License

• free

Website

• Vendor: https://www.horde.org/
• Product: https://github.com/horde/Vfs/

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