CVE-2026-25512 PoC — Group-Office is vulnerable to RCE due to Command Injection via TNEF Attachment Handler

Source

https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2026/CVE-2026-25512.yaml

Associated Vulnerability

Title: Group-Office is vulnerable to RCE due to Command Injection via TNEF Attachment Handler (CVE-2026-25512)
Description:Group-Office is an enterprise customer relationship management and groupware tool. Prior to versions 6.8.150, 25.0.82, and 26.0.5, there is a remote code execution (RCE) vulnerability in Group-Office. The endpoint email/message/tnefAttachmentFromTempFile directly concatenates the user-controlled parameter tmp_file into an exec() call. By injecting shell metacharacters into tmp_file, an authenticated attacker can execute arbitrary system commands on the server. This issue has been patched in versions 6.8.150, 25.0.82, and 26.0.5.

Description

Group-Office before versions 6.8.150, 25.0.82, and 26.0.5 is vulnerable to remote code execution via OS command injection. The endpoint email/message/tnefAttachmentFromTempFile directly concatenates the user-controlled parameter tmp_file into an exec() call. By injecting shell metacharacters into tmp_file, an authenticated attacker can execute arbitrary system commands on the server.

File Snapshot

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