The CivetWeb web library does not validate uploaded filepaths when running on an OS other than Windows, when using the built-in HTTP form-based file upload mechanism, via the mg_handle_form_request API. Web applications that use the file upload form handler, and use parts of the user-controlled filename in the output path, are susceptible to directory traversal
[
{
"product": "civetweb",
"vendor": "civetweb_project",
"versions": [
{
"lessThan": "unspecified",
"status": "unaffected",
"version": "1.15",
"versionType": "custom"
},
{
"lessThan": "unspecified",
"status": "affected",
"version": "1.8",
"versionType": "custom"
}
]
}
]