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    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 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.

    Published:Feb 2, 2026
    Last Modified:Apr 18, 2026
    EPS:Feb 2, 2026
    EPSS Score:0.00171
    CVSS Score:8.8

    Affected Products

    Vendor
    Group-office
    Product
    Group Office
    Vendor
    Intermesh
    Product
    Group-office

    Exploits

    https://github.com/Intermesh/groupoffice/security/advisories/GHSA-v39j-549w-8849

    Related CVEs

    CVE-2026-25511 (CVSS 8.2) — Group-Office is an enterprise customer relationship management and groupware tool. Prior to versions 6.8.150, …
    CVE-2026-25512 (CVSS 9.4) — Group-Office is an enterprise customer relationship management and groupware tool. Prior to versions 6.8.150, …
    CVE-2026-23887 (CVSS 5.1) — Group-Office is an enterprise customer relationship management and groupware tool. In versions 6.8.148 and bel…
    CVE-2025-63406 (CVSS 8.8) — An issue in Intermesh BV GroupOffice vulnerable before v.25.0.47 and 6.8.136 allows a remote attacker to execu…
    CVE-2025-53505 (CVSS 5.3) — Group-Office versions prior to 6.8.119 and prior to 25.0.20 provided by Intermesh BV contain a path traversal …
    CVE-2025-53504 (CVSS 4.8) — Group-Office versions prior to 6.8.119 and prior to 25.0.20 provided by Intermesh BV contain a cross-site scri…
    CVE-2025-25191 (CVSS 6.9) — Group-Office is an enterprise CRM and groupware tool. This Stored XSS vulnerability exists where user input in…
    CVE-2024-23941 (CVSS 5.4) — Cross-site scripting vulnerability exists in Group Office prior to v6.6.182, prior to v6.7.64 and prior to v6.…
    CVE-2024-22418 (CVSS 6.5) — Group-Office is an enterprise CRM and groupware tool. Affected versions are subject to a vulnerability which i…
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    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High