CVE-2026-25134: 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…

PriorityP262high8.8CVSS 3.1

AVNACLPRLUINSUCHIHAH

EPSS

0.80%

51.9th percentile

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.

Affected

6 ranges

Vendor	Product	Version range	Fixed in
group-office	group_office	< 6.8.150	6.8.150
group-office	group_office	>= 25.0.1 < 25.0.82	25.0.82
group-office	group_office	>= 26.0.1 < 26.0.5	26.0.5
intermesh	groupoffice	< 6.8.150	6.8.150
intermesh	groupoffice	—	—
intermesh	groupoffice	—	—

CVSS provenance

nvdv3.18.8HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

nvdv4.09.4CRITICALCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

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