{"id":22840,"date":"2025-11-26T21:31:51","date_gmt":"2025-11-26T13:31:51","guid":{"rendered":"https:\/\/blog.iyatt.com\/?p=22840"},"modified":"2025-11-26T21:47:54","modified_gmt":"2025-11-26T13:47:54","slug":"wordpress-%e6%8f%92%e4%bb%b6-increase-media-upload-file-size-%e8%a2%ab%e9%98%bf%e9%87%8c%e4%ba%91%e8%ad%a6%e5%91%8a%e6%9c%89%e5%90%8e%e9%97%a8","status":"publish","type":"post","link":"https:\/\/blog.iyatt.com\/?p=22840","title":{"rendered":"WordPress \u63d2\u4ef6 Increase Media Upload File Size \u88ab\u963f\u91cc\u4e91\u8b66\u544a\u6709\u540e\u95e8\uff08The WordPress plugin \u201cIncrease Media Upload File Size\u201d was flagged by Alibaba Cloud for containing a webshell\/backdoor.\uff09"},"content":{"rendered":"

2025\/11\/26
\n\u8fd9\u4e2a\u6708\u521d\u7684\u65f6\u5019\u5c31\u6536\u5230\u963f\u91cc\u4e91\u591a\u6b21\u63d0\u9192\u5b58\u5728 WebShell \u540e\u95e8\uff0c\u5e94\u8be5\u662f\u53d1\u73b0\u6709\u7591\u4f3c\u7279\u5f81\uff0c\u4f46\u662f\u6ca1\u6709\u7ed9\u51fa\u5177\u4f53\u6587\u4ef6\uff0c\u6211\u5c31\u6ca1\u7ba1\u3002
\n\u4eca\u5929\u53c8\u6536\u5230\u4e86\u8b66\u544a
\n\"file\"<\/p>\n

\u8fd9\u6b21\u963f\u91cc\u4e91\u7ed9\u51fa\u4e86\u5177\u4f53\u6587\u4ef6\u7684\u8b66\u544a\u4fe1\u606f\uff0c\u662f wp-maximum-upload-file-size \u63d2\u4ef6\u76ee\u5f55\u4e0b\u7684\u6587\u4ef6<\/p>\n

{\n  "filePathMd5": "9d00787d79fec9685e0c54e67bdc184b",\n  "knowngraphlabels": "\u5206\u652f\u5bf9\u6297\u7ed5\u8fc7\/\u4efb\u610f\u6587\u4ef6\u5199\u5165\/\u4efb\u610f\u6587\u4ef6\u5220\u9664\/\u5bf9\u4e3b\u673a\u7684\u6587\u4ef6\u4fe1\u606f\u8fdb\u884c\u63a2\u6d4b\/\u7ed5\u8fc7open_basedir\u5b89\u5168\u673a\u5236",\n  "sha256": "N\/A",\n  "level": 80,\n  "operateTime": "2025-11-26 21:12:25",\n  "virusType": "Webshell",\n  "filePath": "        \/wordpress\/wp-content\/plugins\/wp-maximum-upload-file-size\/inc\/class-wmufs-chunk-files.php",\n  "notifyStatus": 0,\n  "source": 22,\n  "fileMd5": "b88d9816a19366033a0597984420958f",\n  "fileModifyTime": "2025-11-02 15:58:03",\n  "displayEventName": "\u53d1\u73b0\u540e\u95e8\uff08Webshell\uff09\u6587\u4ef6",\n  "lastFound": "2025-11-26 21:12:25",\n  "fileSha256": "N\/A",\n  "fileCreateTime": 1762070283000,\n  "securityEventExt": {\n    "highlight": {\n      "ruleVersion": "highlight_20210908",\n      "ruleId": 600106,\n      "events": [\n        [0, 1000]\n      ]\n    },\n    "eventLevel": "high",\n    "knowngraph": {\n      "ruleVersion": "known-graph-v4",\n      "ruleId": 600157,\n      "events": {\n        "filter_signature": [\n          "\u4fa6\u67e5.\u6536\u96c6\u53d7\u5bb3\u8005\u4e3b\u673a\u4fe1\u606f.\u5bf9\u4e3b\u673a\u7684\u6587\u4ef6\u4fe1\u606f\u8fdb\u884c\u63a2\u6d4b.is_writable",\n          "\u6301\u4e45\u5316\u63a7\u5236.\u4efb\u610f\u6587\u4ef6\u5199\u5165.fwrite",\n          "\u6301\u4e45\u5316\u63a7\u5236.\u4efb\u610f\u6587\u4ef6\u5220\u9664.unlink",\n          "\u4fa6\u67e5.\u6536\u96c6\u53d7\u5bb3\u8005\u4e3b\u673a\u4fe1\u606f.\u5bf9\u4e3b\u673a\u7684\u6587\u4ef6\u4fe1\u606f\u8fdb\u884c\u63a2\u6d4b.file_exists",\n          "\u9632\u5fa1\u89c4\u907f.\u6587\u672c\u5185\u5bb9\u5bf9\u6297.\u5206\u652f\u5bf9\u6297\u7ed5\u8fc7.if",\n          "\u9632\u5fa1\u89c4\u907f.\u6587\u672c\u5185\u5bb9\u5bf9\u6297.\u5206\u652f\u5bf9\u6297\u7ed5\u8fc7.foreach",\n          "\u6301\u4e45\u5316\u63a7\u5236.\u6587\u4ef6\u5199\u5165.\u5199\u5165\u5185\u5bb9\u5305\u542bPHP\u6587\u4ef6\u6807\u8bc6",\n          "\u9632\u5fa1\u89c4\u907f.\u5173\u95ed\u5b89\u5168\u673a\u5236.\u7ed5\u8fc7open_basedir\u5b89\u5168\u673a\u5236.glob",\n          "\u4fa6\u67e5.\u6536\u96c6\u53d7\u5bb3\u8005\u4e3b\u673a\u4fe1\u606f.\u5bf9\u4e3b\u673a\u7684\u6587\u4ef6\u4fe1\u606f\u8fdb\u884c\u63a2\u6d4b.is_dir"\n        ],\n        "event_name": [\n          "\u53d1\u73b0\u7f51\u7ad9\u540e\u95e8"\n        ],\n        "label": [\n          "\u5206\u652f\u5bf9\u6297\u7ed5\u8fc7",\n          "\u4efb\u610f\u6587\u4ef6\u5199\u5165",\n          "\u4efb\u610f\u6587\u4ef6\u5220\u9664",\n          "\u5bf9\u4e3b\u673a\u7684\u6587\u4ef6\u4fe1\u606f\u8fdb\u884c\u63a2\u6d4b",\n          "\u7ed5\u8fc7open_basedir\u5b89\u5168\u673a\u5236",\n          "\u6587\u4ef6\u5199\u5165"\n        ],\n        "label_key": "\u5206\u652f\u5bf9\u6297\u7ed5\u8fc7\/\u4efb\u610f\u6587\u4ef6\u5199\u5165\/\u4efb\u610f\u6587\u4ef6\u5220\u9664\/\u5bf9\u4e3b\u673a\u7684\u6587\u4ef6\u4fe1\u606f\u8fdb\u884c\u63a2\u6d4b\/\u7ed5\u8fc7open_basedir\u5b89\u5168\u673a\u5236"\n      }\n    }\n  },\n  "clientIp": "172.17.38.188",\n  "firstFound": "2025-10-27 18:43:01",\n  "ruleId": 600157,\n  "fileOwner": "USER:,GROUP:",\n  "assetInfo": "{\\\\\\"aliUid\\\\\\":1785921576475877,\\\\\\"bid\\\\\\":\\\\\\"26842\\\\\\",\\\\\\"clientStatus\\\\\\":\\\\\\"online\\\\\\",\\\\\\"eip\\\\\\":\\\\\\"\\\\\\",\\\\\\"flag\\\\\\":8,\\\\\\"groupId\\\\\\":12591195,\\\\\\"groupName\\\\\\":\\\\\\"default\\\\\\",\\\\\\"internetIp\\\\\\":\\\\\\"47.237.106.25\\\\\\",\\\\\\"intranetIp\\\\\\":\\\\\\"172.17.38.188\\\\\\",\\\\\\"machineInstanceId\\\\\\":\\\\\\"i-t4n2ebz9sgcsgum9vc46\\\\\\",\\\\\\"machineIp\\\\\\":\\\\\\"47.237.106.25\\\\\\",\\\\\\"machineName\\\\\\":\\\\\\"-\\\\\\",\\\\\\"machineRegion\\\\\\":\\\\\\"ap-southeast-os30-a01\\\\\\",\\\\\\"machineType\\\\\\":0,\\\\\\"os\\\\\\":\\\\\\"linux\\\\\\",\\\\\\"regionId\\\\\\":\\\\\\"ap-southeast-1\\\\\\",\\\\\\"status\\\\\\":\\\\\\"Running\\\\\\",\\\\\\"tag\\\\\\":\\\\\\"InternetIp\\\\\\",\\\\\\"uuid\\\\\\":\\\\\\"e3e90487-54db-4ca0-b439-22e04629d06f\\\\\\",\\\\\\"vpcInstanceId\\\\\\":\\\\\\"-\\\\\\"}",\n  "status": 1\n}<\/code><\/pre>\n
\u6211\u63d0\u4ea4\u7ed9 ChatGPT \u5206\u6790\uff0c\u5b83\u544a\u8bc9\u6211\u51e0\u4e4e\u4e0d\u53ef\u80fd\u662f\u8bef\u62a5\uff0c\u6211\u5df2\u7ecf\u628a\u63d2\u4ef6\u7981\u7528\u5e76\u5220\u9664\u4e86\uff0c\u518d\u7ee7\u7eed\u89c2\u5bdf\u4e00\u4e0b
\n\"file\"<\/p>\n
\u8fd9\u4e2a\u63d2\u4ef6\u662f\u7528\u6765\u63d0\u9ad8\u4e0a\u4f20\u6587\u4ef6\u9650\u5236\u7684\uff0c\u4ee5\u505a\u5230\u5728 WordPress \u4e2d\u4e0a\u4f20\u8f83\u5927\u6587\u4ef6\u3002\u4e0d\u77e5\u9053\u662f\u4e0d\u662f\u63d2\u4ef6\u672c\u8eab\u7559\u4e86\u540e\u95e8\uff0c\u6216\u8005\u662f\u88ab\u5176\u5b83\u653b\u51fb\u611f\u67d3\u4e86\uff0c\u6216\u8005\u8bef\u62a5\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
2025\/11\/26 \u8fd9\u4e2a\u6708\u521d\u7684\u65f6\u5019\u5c31\u6536\u5230\u963f\u91cc\u4e91\u591a\u6b21\u63d0\u9192\u5b58\u5728 WebShell \u540e\u95e8\uff0c\u5e94\u8be5\u662f\u53d1\u73b0\u6709\u7591\u4f3c\u7279\u5f81\uff0c\u4f46 […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"zakra_page_container_layout":"customizer","zakra_page_sidebar_layout":"customizer","zakra_remove_content_margin":false,"zakra_sidebar":"customizer","zakra_transparent_header":"customizer","zakra_logo":0,"zakra_main_header_style":"default","zakra_menu_item_color":"","zakra_menu_item_hover_color":"","zakra_menu_item_active_color":"","zakra_menu_active_style":"","zakra_page_header":true,"_lmt_disableupdate":"no","_lmt_disable":"no","footnotes":""},"categories":[1,582,581],"tags":[],"class_list":["post-22840","post","type-post","status-publish","format-standard","hentry","category-all","category-582","category-581"],"modified_by":"IYATT-yx","_links":{"self":[{"href":"https:\/\/blog.iyatt.com\/index.php?rest_route=\/wp\/v2\/posts\/22840","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blog.iyatt.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.iyatt.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.iyatt.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.iyatt.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=22840"}],"version-history":[{"count":5,"href":"https:\/\/blog.iyatt.com\/index.php?rest_route=\/wp\/v2\/posts\/22840\/revisions"}],"predecessor-version":[{"id":22847,"href":"https:\/\/blog.iyatt.com\/index.php?rest_route=\/wp\/v2\/posts\/22840\/revisions\/22847"}],"wp:attachment":[{"href":"https:\/\/blog.iyatt.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=22840"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.iyatt.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=22840"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.iyatt.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=22840"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}