xss拦截咨询

问题场景:通过 api 上传截屏照片,有时可以成功上传,有时会触发 xss 拦截
拦截详情:

远程端口 48897
时间 2025-08-07 10:44:37
请求类型 POST
User-Agent
动作 禁止
命中规则 XSS
匹配值 –cbce6523-3746-4b79-841d-54ce6511fc5f Content-Type: image/png Content-Disposition: form-data; name=file; filename=screenshot.png; filename*=utf-8’'screenshot.png �PNG IHDR
IHDR
���sRGB���gAMA���a pHYs���o�d��IDATx^��i��}�����ϜI&�$'vƖ��$Hľb#v�4h�$��(ґ�XN�(�;"e˜h�(Z�H�"Y�lX�m9��U�$Φl�gq������jT?�z��۸hԧ������vo7/������0�L�’7>

上传脚本如下:

try {
        $httpClient = New-Object System.Net.Http.HttpClient
        $multipartContent = New-Object System.Net.Http.MultipartFormDataContent

        $fileContent = New-Object System.Net.Http.StreamContent($ImageStream)
        $fileContent.Headers.ContentType = [System.Net.Http.Headers.MediaTypeHeaderValue]::Parse("image/png")

        $multipartContent.Add($fileContent, "file", $FileName)

        $response = $httpClient.PostAsync($ApiUrl, $multipartContent).Result
        $responseContent = $response.Content.ReadAsStringAsync().Result

        if ($response.IsSuccessStatusCode) {
            Write-Host "✅ 上传成功,服务器响应:"
            Write-Host $responseContent
        } else {
            Write-Host "❌ 上传失败,状态码: $($response.StatusCode)"
            Write-Host $responseContent
        }
    } catch {
        Write-Host "❌ 上传过程中出现异常:$_"
    }

xss 的校验比较严格 你可以给上传图片的接口增加白名单

好的,谢谢回复