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vuln-cve/data/2026/40xxx/CVE-2026-40187.json
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{
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"cveMetadata": {
"cveId": "CVE-2026-40187",
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"state": "PUBLISHED",
"assignerShortName": "GitHub_M",
"dateReserved": "2026-04-09T20:59:17.620Z",
"datePublished": "2026-07-20T17:00:38.515Z",
"dateUpdated": "2026-07-20T17:34:06.076Z"
},
"containers": {
"cna": {
"title": "Authenticated RCE via Malicious eTemplate Upload in EGroupware",
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-78",
"lang": "en",
"description": "CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')",
"type": "CWE"
}
]
},
{
"descriptions": [
{
"cweId": "CWE-95",
"lang": "en",
"description": "CWE-95: Improper Neutralization of Directives in Dynamically Evaluated Code ('Eval Injection')",
"type": "CWE"
}
]
}
],
"metrics": [
{
"cvssV4_0": {
"attackVector": "NETWORK",
"attackComplexity": "LOW",
"attackRequirements": "NONE",
"privilegesRequired": "HIGH",
"userInteraction": "NONE",
"vulnConfidentialityImpact": "HIGH",
"vulnIntegrityImpact": "HIGH",
"vulnAvailabilityImpact": "HIGH",
"subConfidentialityImpact": "NONE",
"subIntegrityImpact": "NONE",
"subAvailabilityImpact": "NONE",
"baseScore": 8.6,
"baseSeverity": "HIGH",
"vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
"version": "4.0"
}
}
],
"references": [
{
"name": "https://github.com/EGroupware/egroupware/security/advisories/GHSA-8737-2x9g-xjj7",
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://github.com/EGroupware/egroupware/security/advisories/GHSA-8737-2x9g-xjj7"
}
],
"affected": [
{
"vendor": "EGroupware",
"product": "egroupware",
"versions": [
{
"version": "<= 26.0",
"status": "affected"
}
]
}
],
"providerMetadata": {
"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"shortName": "GitHub_M",
"dateUpdated": "2026-07-20T17:00:38.515Z"
},
"descriptions": [
{
"lang": "en",
"value": "In egroupware version 26.0 and earlier, an authenticated administrator can achieve OS-level Remote Code Execution (RCE) by uploading a malicious eTemplate XML file (`.xet`) to the VFS `/etemplates` mount. The `Widget::expand_name()` method passes template widget attribute values directly into a PHP `eval()` call with only double-quote escaping applied - **backtick characters are not escaped**. In PHP, backticks inside a double-quoted `eval()` string execute shell commands. This allows an admin-level user to escalate from web application access to arbitrary OS command execution on the server."
}
],
"source": {
"advisory": "GHSA-8737-2x9g-xjj7",
"discovery": "UNKNOWN"
}
},
"adp": [
{
"references": [
{
"url": "https://github.com/EGroupware/egroupware/security/advisories/GHSA-8737-2x9g-xjj7",
"tags": [
"exploit"
]
}
],
"metrics": [
{
"other": {
"type": "ssvc",
"content": {
"timestamp": "2026-07-20T17:33:53.704724Z",
"id": "CVE-2026-40187",
"options": [
{
"Exploitation": "poc"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"version": "2.0.3"
}
}
}
],
"title": "CISA ADP Vulnrichment",
"providerMetadata": {
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP",
"dateUpdated": "2026-07-20T17:34:06.076Z"
}
}
]
}
}