{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-63011",
        "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "state": "PUBLISHED",
        "assignerShortName": "GitHub_M",
        "dateReserved": "2026-07-14T23:10:57.033Z",
        "datePublished": "2026-11-10T16:35:37.835Z",
        "dateUpdated": "2026-11-10T16:35:37.835Z"
    },
    "containers": {
        "cna": {
            "title": "GroupOffice Vulnerable to RCE in TemplateParser eval() via Contact/labels",
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-94",
                            "lang": "en",
                            "description": "CWE-94: Improper Control of Generation of Code ('Code Injection')",
                            "type": "CWE"
                        }
                    ]
                },
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-95",
                            "lang": "en",
                            "description": "CWE-95: Improper Neutralization of Directives in Dynamically Evaluated Code ('Eval Injection')",
                            "type": "CWE"
                        }
                    ]
                },
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-184",
                            "lang": "en",
                            "description": "CWE-184: Incomplete List of Disallowed Inputs",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "metrics": [
                {
                    "cvssV4_0": {
                        "attackVector": "NETWORK",
                        "attackComplexity": "LOW",
                        "attackRequirements": "NONE",
                        "privilegesRequired": "LOW",
                        "userInteraction": "NONE",
                        "vulnConfidentialityImpact": "HIGH",
                        "vulnIntegrityImpact": "HIGH",
                        "vulnAvailabilityImpact": "HIGH",
                        "subConfidentialityImpact": "HIGH",
                        "subIntegrityImpact": "HIGH",
                        "subAvailabilityImpact": "HIGH",
                        "baseScore": 9.4,
                        "baseSeverity": "CRITICAL",
                        "vectorString": "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",
                        "version": "4.0"
                    }
                }
            ],
            "references": [
                {
                    "name": "https://github.com/Intermesh/groupoffice/security/advisories/GHSA-4m9w-3p93-6cwx",
                    "tags": [
                        "x_refsource_CONFIRM"
                    ],
                    "url": "https://github.com/Intermesh/groupoffice/security/advisories/GHSA-4m9w-3p93-6cwx"
                },
                {
                    "name": "https://github.com/Intermesh/groupoffice/releases/tag/v25.0.102",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/Intermesh/groupoffice/releases/tag/v25.0.102"
                },
                {
                    "name": "https://github.com/Intermesh/groupoffice/releases/tag/v26.0.27",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/Intermesh/groupoffice/releases/tag/v26.0.27"
                },
                {
                    "name": "https://github.com/Intermesh/groupoffice/releases/tag/v6.8.167",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/Intermesh/groupoffice/releases/tag/v6.8.167"
                }
            ],
            "affected": [
                {
                    "vendor": "Intermesh",
                    "product": "groupoffice",
                    "versions": [
                        {
                            "version": "< 6.8.167",
                            "status": "affected"
                        },
                        {
                            "version": "< 25.0.102",
                            "status": "affected"
                        },
                        {
                            "version": "< 26.0.27",
                            "status": "affected"
                        }
                    ]
                }
            ],
            "providerMetadata": {
                "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
                "shortName": "GitHub_M",
                "dateUpdated": "2026-11-10T16:35:37.835Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "Group-Office is an enterprise customer relationship management and groupware tool. Prior to versions 6.8.167, 25.0.102, and 26.0.27, the Contact/labels JMAP endpoint in GroupOffice accepts a fully attacker-controlled template string (tpl parameter) that is passed without restriction to TemplateParser::parse(). When the template contains an [assign] block whose expression includes a {{...}} variable reference, the engine calls eval() on the expanded expression after running it through a validateExpression() guard. The guard double-quotes unrecognized tokens, but PHP 7+ allows a string enclosed in parentheses to be invoked as a function (\"system\")(\"id\") is valid PHP and calls system(\"id\"). A single authenticated HTTP request is sufficient to execute arbitrary OS commands as the web server user (www-data). This issue has been patched in versions 6.8.167, 25.0.102, and 26.0.27."
                }
            ],
            "source": {
                "advisory": "GHSA-4m9w-3p93-6cwx",
                "discovery": "UNKNOWN"
            }
        }
    }
}