CVE-2026-25134

Group-Office Argument Injection in MaintenanceController::actionZipLanguage

State: Published
Severity: 9.4 Critical
Published: Feb 2, 2026
Updated: Feb 4, 2026
Reserved: Jan 29, 2026

Description

Group-Office is an enterprise customer relationship management and groupware tool. Prior to 6.8.150, 25.0.82, and 26.0.5, the MaintenanceController exposes an action zipLanguage which takes a lang parameter and passes it directly to a system zip command via exec(). This can be combined with uploading a crafted zip file to achieve remote code execution. This vulnerability is fixed in 6.8.150, 25.0.82, and 26.0.5.

Scores

CVSS	Score	Vector	Source
4.0	9.4 Critical	CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H	GitHub_M

Weaknesses

CWE-88 Improper Neutralization of Argument Delimiters in a Command ('Argument Injection')

Affected Products

Product	Versions
groupofficeIntermesh	< 6.8.150Affected >= 25.0.0, < 25.0.82Affected >= 26.0.0, < 26.0.5Affected

References

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