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vuln-cve/data/2026/27xxx/CVE-2026-27636.json
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{
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"cveMetadata": {
"cveId": "CVE-2026-27636",
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"state": "PUBLISHED",
"assignerShortName": "GitHub_M",
"dateReserved": "2026-02-20T22:02:30.028Z",
"datePublished": "2026-02-25T03:41:33.166Z",
"dateUpdated": "2026-02-25T15:25:24.822Z"
},
"containers": {
"cna": {
"title": "FreeScout: Missing .htaccess in Restricted File Extensions Allows Remote Code Execution on Apache",
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-434",
"lang": "en",
"description": "CWE-434: Unrestricted Upload of File with Dangerous Type",
"type": "CWE"
}
]
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 8.8,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
}
}
],
"references": [
{
"name": "https://github.com/freescout-help-desk/freescout/security/advisories/GHSA-mw88-x7j3-74vc",
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://github.com/freescout-help-desk/freescout/security/advisories/GHSA-mw88-x7j3-74vc"
},
{
"name": "https://github.com/freescout-help-desk/freescout/security/advisories/GHSA-6gcm-v8xf-j9v9",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/freescout-help-desk/freescout/security/advisories/GHSA-6gcm-v8xf-j9v9"
},
{
"name": "https://github.com/freescout-help-desk/freescout/commit/9984071e6f1b4e633fdcffcea82bbebc9c1e009c",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/freescout-help-desk/freescout/commit/9984071e6f1b4e633fdcffcea82bbebc9c1e009c"
}
],
"affected": [
{
"vendor": "freescout-help-desk",
"product": "freescout",
"versions": [
{
"version": "< 1.8.206",
"status": "affected"
}
]
}
],
"providerMetadata": {
"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"shortName": "GitHub_M",
"dateUpdated": "2026-02-25T03:41:33.166Z"
},
"descriptions": [
{
"lang": "en",
"value": "FreeScout is a free help desk and shared inbox built with PHP's Laravel framework. Prior to version 1.8.206, FreeScout's file upload restriction list in `app/Misc/Helper.php` does not include `.htaccess` or `.user.ini` files. On Apache servers with `AllowOverride All` (a common configuration), an authenticated user can upload a `.htaccess` file to redefine how files are processed, enabling Remote Code Execution. This vulnerability can be exploited on its own or in combination with CVE-2026-27637. Version 1.8.206 fixes both vulnerabilities."
}
],
"source": {
"advisory": "GHSA-mw88-x7j3-74vc",
"discovery": "UNKNOWN"
}
},
"adp": [
{
"references": [
{
"url": "https://github.com/freescout-help-desk/freescout/security/advisories/GHSA-mw88-x7j3-74vc",
"tags": [
"exploit"
]
},
{
"url": "https://github.com/freescout-help-desk/freescout/security/advisories/GHSA-6gcm-v8xf-j9v9",
"tags": [
"exploit"
]
}
],
"metrics": [
{
"other": {
"type": "ssvc",
"content": {
"timestamp": "2026-02-25T15:25:18.635184Z",
"id": "CVE-2026-27636",
"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": "2026-02-25T15:25:24.822Z"
}
}
]
}
}