CVE-2026-25134: critical vulnerability in Intermesh groupoffice
Group-Office Argument Injection in MaintenanceController::actionZipLanguage
Published · Updated
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28Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 9.4epss 0.9%
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.
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
Affected products
Intermesh · groupofficeRelated CVEs — Intermesh groupoffice
In the same product, most dangerous first.
CVE-2026-25512CRITICALGroup-Office is vulnerable to RCE due to Command Injection via TNEF Attachment HandlerEPSS 19.9%CVE-2026-34838CRITICALGroup-Office: Authenticated Remote Code Execution via PHP Insecure Deserialization in `AbstractSettingsCollection`EPSS 1.0%CVE-2026-27947CRITICALGroup-Office Vulnerable to Remote Code Execution (RCE)EPSS 0.8%CVE-2023-46730HIGHServer-Side Request Forgery in groupoffice EPSS 0.7%CVE-2026-25511HIGHGroup-Office is vulnerable to SSRF and File Read in WOPI service discoveryEPSS 0.4%CVE-2024-22418MEDIUMStored Cross-site Scripting Vulnerability via Malicious File Names in GroupOfficeEPSS 0.4%