{"id":1049,"date":"2026-11-13T18:39:13","date_gmt":"2026-11-13T10:39:13","guid":{"rendered":"https:\/\/btc354.com\/index.php\/2026\/11\/13\/pulsemate-security-b296cb9efdf4cfb3389fb8ee22fab97b1d6265def3a2304cdee642a946c2c3dd\/"},"modified":"2026-11-13T18:39:13","modified_gmt":"2026-11-13T10:39:13","slug":"pulsemate-security-b296cb9efdf4cfb3389fb8ee22fab97b1d6265def3a2304cdee642a946c2c3dd","status":"publish","type":"post","link":"https:\/\/btc354.com\/index.php\/2026\/11\/13\/pulsemate-security-b296cb9efdf4cfb3389fb8ee22fab97b1d6265def3a2304cdee642a946c2c3dd\/","title":{"rendered":"ExcelJS \u4efb\u610f\u6587\u4ef6\u8bfb\u53d6\u6f0f\u6d1e\u6df1\u5ea6\u5e94\u6025\u54cd\u5e94\uff1aCVE-2026-128347 \u8def\u5f84\u7a7f\u8d8a\u539f\u7406\u3001\u590d\u73b0\u4e0e\u4fee\u590d\u95ed\u73af"},"content":{"rendered":"<blockquote class=\"doc-lead\"><p><strong>\u5bfc\u8bed\uff1a<\/strong>ExcelJS \u4efb\u610f\u6587\u4ef6\u8bfb\u53d6\u6f0f\u6d1e\uff08CVE-2026-128347\uff09\u662f\u8fd1\u671f Node.js \u751f\u6001\u4e2d\u4e00\u4e2a CVSS \u9ad8\u8fbe 8.7 \u7684\u9ad8\u5371\u4f9b\u5e94\u94fe\u98ce\u9669\u2014\u2014\u653b\u51fb\u8005\u53ea\u9700\u5411\u6d41\u5f0f WorkbookWriter \u7684 addImage \u4f20\u5165\u5e26 <code>..\/<\/code> \u7684\u6587\u4ef6\u540d\uff0c\u5c31\u80fd\u628a\u670d\u52a1\u5668\u4e0a\u4efb\u610f\u53ef\u8bfb\u6587\u4ef6\u6084\u6084\u5d4c\u5165\u751f\u6210\u7684 Excel \u5e76\u4e0b\u8f7d\u56de\u672c\u5730\u3002\u4f5c\u4e3a\u957f\u671f\u8d1f\u8d23\u670d\u52a1\u7aef\u5bfc\u51fa\u94fe\u8def\u7684\u67b6\u6784\u5e08\uff0c\u6211\u8ba4\u4e3a\u8fd9\u4e0d\u662f\u4e00\u6b21\u666e\u901a\u7684\u4f9d\u8d56\u5347\u7ea7\uff0c\u800c\u662f\u4e00\u6b21\u5fc5\u987b\u6309\u5e94\u6025\u54cd\u5e94\u6d41\u7a0b\u95ed\u73af\u7684\u751f\u4ea7\u5b89\u5168\u4e8b\u4ef6\u3002<\/p><\/blockquote>\n<div class=\"doc-spec-grid\">\n<div class=\"doc-spec-item\"><span class=\"doc-spec-label\">\ud83c\udfaf \u6838\u5fc3\u6280\u672f<\/span><span class=\"doc-spec-value\">ExcelJS 4.4.0 \/ Node.js \u6d41\u5f0f\u5bfc\u51fa<\/span><\/div>\n<div class=\"doc-spec-item\"><span class=\"doc-spec-label\">\u26a1 \u67b6\u6784\u96be\u5ea6<\/span><span class=\"doc-spec-value\">\u8d44\u6df1\u67b6\u6784\u7ea7 (Level 3-4)<\/span><\/div>\n<div class=\"doc-spec-item\"><span class=\"doc-spec-label\">\ud83d\ude80 \u6838\u5fc3\u6536\u76ca<\/span><span class=\"doc-spec-value\">CVSS 8.7 \u9ad8\u5371\u98ce\u9669 100% \u95ed\u73af<\/span><\/div>\n<\/div>\n<h2 class=\"doc-h2\">\u4e00\u3001ExcelJS \u4efb\u610f\u6587\u4ef6\u8bfb\u53d6\u6f0f\u6d1e\u7684\u4e8b\u4ef6\u5168\u8c8c\u4e0e\u5f71\u54cd\u9762<\/h2>\n<p class=\"doc-p\" data-enlighter-language=\"text\">\u6839\u636e NVD \u5b98\u65b9\u901a\u544a\uff0cCVE-2026-128347 \u5f71\u54cd ExcelJS 4.4.0 \u53ca\u4e4b\u524d\u7684\u6240\u6709\u7248\u672c\uff0c\u6f0f\u6d1e\u4f4d\u4e8e\u6d41\u5f0f\u5199\u5165\u5668 <code>WorkbookWriter<\/code> \u7684\u56fe\u7247\u5904\u7406\u94fe\u8def\u3002\u6838\u5fc3\u95ee\u9898\u5728\u4e8e\uff1a<code>addImage<\/code> \u63a5\u53d7\u7528\u6237\u53ef\u63a7\u7684\u56fe\u7247\u6587\u4ef6\u540d\uff0c\u800c\u5e95\u5c42 <code>addMedia<\/code> \u5728\u628a\u5a92\u4f53\u5199\u5165 ZIP \u5305\u65f6\uff0c\u672a\u5bf9\u6587\u4ef6\u540d\u505a\u89c4\u8303\u5316\u4e0e\u76ee\u5f55\u9003\u9038\u6821\u9a8c\uff0c\u5bfc\u81f4 <code>..\/<\/code> \u8def\u5f84\u6bb5\u53ef\u4ee5\u7a7f\u900f\u5230\u8fdb\u7a0b\u53ef\u8bbf\u95ee\u7684\u4efb\u610f\u76ee\u5f55\u3002<\/p>\n<p class=\"doc-p\">\u4ece\u67b6\u6784\u89c6\u89d2\u770b\uff0c\u8fd9\u7c7b\u6f0f\u6d1e\u7684\u5371\u9669\u6027\u88ab\u4e09\u4e2a\u56e0\u7d20\u653e\u5927\uff1a\u5176\u4e00\uff0cExcel \u5bfc\u51fa\u51e0\u4e4e\u662f\u6240\u6709\u540e\u53f0\u7ba1\u7406\u7cfb\u7edf\u7684\u6807\u914d\u80fd\u529b\uff1b\u5176\u4e8c\uff0c\u6d41\u5f0f\u5199\u5165\u5e38\u7528\u4e8e\u5927\u62a5\u8868\uff0c\u5f80\u5f80\u76f4\u63a5\u66b4\u9732\u5728\u5bf9\u5916 API \u4e0a\uff1b\u5176\u4e09\uff0cNode.js \u8fdb\u7a0b\u901a\u5e38\u4ee5\u5e94\u7528\u8d26\u53f7\u8fd0\u884c\uff0c\u53ef\u8bfb\u53d6 <code>.env<\/code>\u3001\u79c1\u94a5\u3001\u914d\u7f6e\u6587\u4ef6\u7b49\u654f\u611f\u8d44\u4ea7\u3002\u6362\u53e5\u8bdd\u8bf4\uff0c\u4e00\u4e2a\u770b\u4f3c\u65e0\u5bb3\u7684\u201c\u5bfc\u51fa\u5e26\u56fe\u62a5\u8868\u201d\u63a5\u53e3\uff0c\u53ef\u80fd\u53d8\u6210\u4efb\u610f\u6587\u4ef6\u4e0b\u8f7d\u901a\u9053\u3002<\/p>\n<div class=\"doc-callout doc-callout-danger\">\n<div class=\"doc-callout-title\">\ud83d\udea8 \u4e25\u91cd\u9690\u60a3\u544a\u8b66<\/div>\n<p>\u53ea\u8981\u4f60\u7684\u670d\u52a1\u5b58\u5728\u201c\u7528\u6237\u53ef\u5f71\u54cd addImage \u6587\u4ef6\u540d\u201d\u7684\u8c03\u7528\u8def\u5f84\uff0c\u4e14\u5bfc\u51fa\u63a5\u53e3\u5bf9\u516c\u7f51\u53ef\u8fbe\uff0c\u5c31\u5e94\u89c6\u4e3a\u5df2\u66b4\u9732\u3002\u653b\u51fb\u8005\u65e0\u9700\u8ba4\u8bc1\u7ed5\u8fc7\u3001\u65e0\u9700 RCE\uff0c\u4ec5\u51ed\u4e00\u6b21\u5bfc\u51fa\u8bf7\u6c42\u5373\u53ef\u5b8c\u6210\u6570\u636e\u5916\u5e26\uff0c\u9690\u853d\u6027\u6781\u5f3a\u3002<\/p><\/div>\n<div class=\"doc-arch-card\">\n<div class=\"doc-arch-header\">\n<div class=\"doc-arch-title-wrap\">\n      <span class=\"doc-arch-title\"><span class=\"icon\">\ud83d\udcd0<\/span> ExcelJS \u4efb\u610f\u6587\u4ef6\u8bfb\u53d6\u6f0f\u6d1e\u653b\u51fb\u94fe\u8def\u5168\u666f<\/span><br \/>\n      <span class=\"doc-arch-badge\">\u4f01\u4e1a\u7ea7\u67b6\u6784\u89c4\u8303<\/span>\n    <\/div>\n<div class=\"doc-arch-actions\">\n      <button type=\"button\" class=\"doc-arch-btn btn-copy-raw\">\ud83d\udccb \u590d\u5236\u6e90\u7801<\/button><br \/>\n      <button type=\"button\" class=\"doc-arch-btn btn-zoom-arch\">\ud83d\udd0d \u653e\u5927\u67e5\u770b<\/button>\n    <\/div>\n<\/p><\/div>\n<pre class=\"mermaid\">\nflowchart TD\n    subgraph \u63a5\u5165\u5c42 [\"\u8868\u73b0\u5c42\u4e0e\u63a5\u5165\u7f51\u5173 (Client &amp; Gateway Tier)\"]\n        A[\"\u653b\u51fb\u8005\u6784\u9020\u5bfc\u51fa\u8bf7\u6c42 (imageName=..\/..\/etc\/passwd)\"] --&gt; B[\"\u4e1a\u52a1\u5bfc\u51fa API (\u672a\u505a\u6587\u4ef6\u540d\u767d\u540d\u5355\u6821\u9a8c)\"]\n    end\n    subgraph \u5e94\u7528\u5c42 [\"\u5e94\u7528\u670d\u52a1\u4e0e\u8c03\u7528\u5c42 (Application Tier)\"]\n        B --&gt; C[\"ExcelJS WorkbookWriter.addImage(filename)\"]\n        C --&gt; D[\"addMedia \u62fc\u63a5 xl\/media \u76ee\u6807\u8def\u5f84\"]\n    end\n    subgraph \u6838\u5fc3\u5c42 [\"\u6587\u4ef6\u7cfb\u7edf\u4e0e\u8def\u5f84\u89e3\u6790 (Core FS Tier)\"]\n        D --&gt; E[\"path \u672a\u89c4\u8303\u5316, ..\/ \u9003\u9038\u51fa\u5a92\u4f53\u76ee\u5f55\"]\n        E --&gt; F[\"\u8bfb\u53d6\u8fdb\u7a0b\u53ef\u8bbf\u95ee\u7684\u4efb\u610f\u672c\u5730\u6587\u4ef6\"]\n    end\n    subgraph \u8f93\u51fa\u5c42 [\"\u6570\u636e\u5916\u5e26\u4e0e\u6301\u4e45\u5316 (Exfiltration Tier)\"]\n        F --&gt; G[\"\u6587\u4ef6\u5185\u5bb9\u5199\u5165 xl\/media \u5e76\u6253\u5305 xlsx\"]\n        G --&gt; H[\"\u54cd\u5e94\u4e0b\u8f7d, \u654f\u611f\u6570\u636e\u5916\u5e26\"]\n    end\n  <\/pre>\n<div class=\"doc-arch-caption\">\u56fe 1: ExcelJS \u4efb\u610f\u6587\u4ef6\u8bfb\u53d6\u6f0f\u6d1e\u4ece\u8bf7\u6c42\u6ce8\u5165\u5230\u6570\u636e\u5916\u5e26\u7684\u5b8c\u6574\u653b\u51fb\u94fe\u8def<\/div>\n<\/div>\n<h2 class=\"doc-h2\">\u4e8c\u3001\u6f0f\u6d1e\u6839\u56e0\u62c6\u89e3\uff1aaddImage \u5230 addMedia \u7684\u8def\u5f84\u7a7f\u8d8a<\/h2>\n<h3 class=\"doc-h3\">2.1 \u8c03\u7528\u94fe\u4e0e\u7f3a\u9677\u70b9\u5b9a\u4f4d<\/h3>\n<p class=\"doc-p\">ExcelJS \u7684\u6d41\u5f0f\u5199\u5165\u6a21\u578b\u4e0b\uff0c\u56fe\u7247\u8d44\u6e90\u5148\u7ecf <code>addImage<\/code> \u767b\u8bb0\uff0c\u518d\u7531 <code>addMedia<\/code> \u5728\u6253\u5305\u9636\u6bb5\u8bfb\u53d6\u5e76\u5199\u5165 <code>xl\/media<\/code> \u76ee\u5f55\u3002\u7f3a\u9677\u70b9\u5728\u4e8e\uff1a<code>addMedia<\/code> \u76f4\u63a5\u4f7f\u7528\u4f20\u5165\u7684 <code>filename<\/code> \u4f5c\u4e3a\u8bfb\u53d6\u6e90\uff0c\u540c\u65f6\u7528\u540c\u4e00\u5b57\u7b26\u4e32\u53c2\u4e0e\u76ee\u6807\u8def\u5f84\u62fc\u63a5\uff0c\u65e2\u6ca1\u6709 <code>path.basename()<\/code> \u622a\u65ad\u76ee\u5f55\uff0c\u4e5f\u6ca1\u6709 <code>path.resolve()<\/code> \u540e\u505a\u524d\u7f00\u767d\u540d\u5355\u6821\u9a8c\u3002<\/p>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"js\" data-enlighter-title=\"\u6f0f\u6d1e\u89e6\u53d1\u793a\u610f\uff08\u4ec5\u7528\u4e8e\u9632\u5fa1\u6027\u590d\u73b0\uff09\">const ExcelJS = require('exceljs');\n\nasync function exportReport(userControlledImageName) {\n  const workbook = new ExcelJS.stream.xlsx.WorkbookWriter({ filename: 'out.xlsx' });\n  const sheet = workbook.addWorksheet('report');\n\n  \/\/ \u5371\u9669\u70b9\uff1a\u6587\u4ef6\u540d\u5b8c\u5168\u6765\u81ea\u7528\u6237\u8f93\u5165\n  const imageId = workbook.addImage({\n    filename: userControlledImageName, \/\/ \u4f8b\u5982 '..\/..\/..\/..\/etc\/passwd'\n    extension: 'png'\n  });\n\n  sheet.addImage(imageId, 'B2:D6');\n  await workbook.commit();\n}\n<\/pre>\n<h3 class=\"doc-h3\">2.2 \u4e3a\u4ec0\u4e48\u6d41\u5f0f\u5199\u5165\u5668\u98ce\u9669\u66f4\u9ad8<\/h3>\n<ul class=\"doc-list\">\n<li><strong>\u5ef6\u8fdf\u8bfb\u53d6\uff1a<\/strong>\u6d41\u5f0f\u6a21\u5f0f\u4e0b\u5a92\u4f53\u6587\u4ef6\u5728 commit \u9636\u6bb5\u624d\u771f\u6b63\u8bfb\u53d6\uff0c\u5f02\u5e38\u5806\u6808\u4e0e\u4e1a\u52a1\u65e5\u5fd7\u8131\u8282\uff0c\u653b\u51fb\u75d5\u8ff9\u66f4\u96be\u88ab\u53d1\u73b0\u3002<\/li>\n<li><strong>\u5927\u6587\u4ef6\u573a\u666f\uff1a<\/strong>\u6d41\u5f0f\u5bfc\u51fa\u5e38\u7528\u4e8e\u767e\u4e07\u884c\u62a5\u8868\uff0c\u63a5\u53e3\u5f80\u5f80\u653e\u5bbd\u8d85\u65f6\u4e0e\u9274\u6743\uff0c\u653b\u51fb\u7a97\u53e3\u66f4\u5927\u3002<\/li>\n<li><strong>\u8def\u5f84\u62fc\u63a5\u60ef\u6027\uff1a<\/strong>\u5f00\u53d1\u8005\u4e60\u60ef\u8ba4\u4e3a\u201c\u56fe\u7247\u540d\u53ea\u662f\u8d44\u6e90\u6807\u8bc6\u201d\uff0c\u5ffd\u89c6\u4e86\u5b83\u540c\u65f6\u662f\u6587\u4ef6\u7cfb\u7edf\u8def\u5f84\u7684\u4e00\u90e8\u5206\u3002<\/li>\n<\/ul>\n<div class=\"doc-callout doc-callout-info\">\n<div class=\"doc-callout-title\">\ud83d\udca1 \u67b6\u6784\u6838\u5fc3\u51b3\u7b56<\/div>\n<p>\u4efb\u4f55\u201c\u7528\u6237\u53ef\u63a7\u5b57\u7b26\u4e32\u53c2\u4e0e\u6587\u4ef6\u7cfb\u7edf\u8def\u5f84\u62fc\u63a5\u201d\u7684\u4f4d\u7f6e\uff0c\u90fd\u5fc5\u987b\u7ecf\u8fc7 <code>path.resolve<\/code> \u5f52\u4e00\u5316 + \u524d\u7f00\u767d\u540d\u5355\u53cc\u91cd\u6821\u9a8c\u3002\u8fd9\u4e0d\u662f ExcelJS \u72ec\u6709\u7684\u95ee\u9898\uff0c\u800c\u662f\u6240\u6709\u6587\u4ef6\u5904\u7406\u5e93\u7684\u901a\u7528\u9632\u5fa1\u57fa\u7ebf\u3002<\/div>\n<h2 class=\"doc-h2\">\u4e09\u3001\u5f71\u54cd\u9762\u6392\u67e5\uff1a\u4f60\u7684\u670d\u52a1\u662f\u5426\u5728\u5c04\u7a0b\u5185<\/h2>\n<p class=\"doc-p\">\u5e94\u6025\u54cd\u5e94\u7684\u7b2c\u4e00\u6b65\u4e0d\u662f\u5347\u7ea7\uff0c\u800c\u662f\u7cbe\u51c6\u5b9a\u4f4d\u66b4\u9732\u9762\u3002\u5efa\u8bae\u6309\u4ee5\u4e0b\u6e05\u5355\u5728\u4ee3\u7801\u4ed3\u5e93\u4e0e\u8fd0\u884c\u65f6\u4e24\u4e2a\u7ef4\u5ea6\u540c\u65f6\u6392\u67e5\u3002<\/p>\n<div class=\"doc-table-wrapper\">\n<table class=\"doc-table\">\n<thead>\n<tr>\n<th>\u6392\u67e5\u7ef4\u5ea6<\/th>\n<th>\u9ad8\u5371\u7279\u5f81<\/th>\n<th>\u5b89\u5168\u7279\u5f81<\/th>\n<th>\u5904\u7f6e\u5efa\u8bae<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\u4f9d\u8d56\u7248\u672c<\/td>\n<td>exceljs &lt;= 4.4.0<\/td>\n<td>\u5df2\u5347\u7ea7\u81f3\u4fee\u590d\u7248\u672c<\/td>\n<td><span class=\"badge-tag-green\">\u7acb\u5373\u5347\u7ea7<\/span><\/td>\n<\/tr>\n<tr>\n<td>\u8c03\u7528\u65b9\u5f0f<\/td>\n<td>addImage \u7684 filename \u6765\u81ea\u8bf7\u6c42\u53c2\u6570<\/td>\n<td>filename \u4e3a\u670d\u52a1\u7aef\u5e38\u91cf\u6216\u767d\u540d\u5355 ID<\/td>\n<td><span class=\"badge-tag-green\">\u6539\u4e3a ID \u6620\u5c04<\/span><\/td>\n<\/tr>\n<tr>\n<td>\u63a5\u53e3\u66b4\u9732<\/td>\n<td>\u5bfc\u51fa\u63a5\u53e3\u516c\u7f51\u53ef\u8fbe\u3001\u5f31\u9274\u6743<\/td>\n<td>\u5185\u7f51 + \u5f3a\u9274\u6743 + \u9650\u6d41<\/td>\n<td><span class=\"badge-tag-green\">\u6536\u655b\u66b4\u9732\u9762<\/span><\/td>\n<\/tr>\n<tr>\n<td>\u8fdb\u7a0b\u6743\u9650<\/td>\n<td>\u4ee5 root \u6216\u9ad8\u6743\u9650\u8fd0\u884c<\/td>\n<td>\u6700\u5c0f\u6743\u9650\u4e13\u7528\u8d26\u53f7<\/td>\n<td><span class=\"badge-tag-green\">\u964d\u6743\u8fd0\u884c<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p class=\"doc-p\">\u5728\u8fd0\u884c\u65f6\u4fa7\uff0c\u53ef\u901a\u8fc7\u4f9d\u8d56\u626b\u63cf\u5feb\u901f\u5b9a\u4f4d\uff1a<\/p>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"bash\" data-enlighter-title=\"\u4f9d\u8d56\u6392\u67e5\u547d\u4ee4\"># \u67e5\u770b\u5f53\u524d\u9501\u5b9a\u7248\u672c\nnpm ls exceljs\n\n# \u4f7f\u7528 npm audit \u68c0\u67e5\u5df2\u77e5\u6f0f\u6d1e\nnpm audit --json | grep -i exceljs\n\n# \u5168\u5c40\u68c0\u7d22 addImage \u8c03\u7528\u70b9\ngrep -rn \"addImage\" .\/src --include=*.js --include=*.ts\n<\/pre>\n<div class=\"doc-callout doc-callout-warning\">\n<div class=\"doc-callout-title\">\u26a0\ufe0f \u751f\u4ea7\u907f\u5751\u98ce\u9669<\/div>\n<p>\u4e0d\u8981\u53ea\u68c0\u67e5\u76f4\u63a5\u4f9d\u8d56\u3002ExcelJS \u5e38\u88ab\u62a5\u8868\u4e2d\u95f4\u4ef6\u3001\u4f4e\u4ee3\u7801\u5e73\u53f0\u3001\u5bfc\u51fa SDK \u95f4\u63a5\u5f15\u5165\uff0c\u52a1\u5fc5\u5bf9 lock \u6587\u4ef6\u505a\u5168\u91cf\u4f20\u9012\u4f9d\u8d56\u626b\u63cf\uff0c\u907f\u514d\u201c\u4ee5\u4e3a\u6ca1\u7528\u5230\u201d\u7684\u6f0f\u7f51\u4e4b\u9c7c\u3002<\/p><\/div>\n<h2 class=\"doc-h2\">\u56db\u3001\u5e94\u6025\u4fee\u590d\u65b9\u6848\uff1a\u4ece\u4e34\u65f6\u7f13\u89e3\u5230\u5f7b\u5e95\u95ed\u73af<\/h2>\n<h3 class=\"doc-h3\">4.1 \u4e34\u65f6\u7f13\u89e3\uff08\u65e0\u6cd5\u7acb\u5373\u5347\u7ea7\u65f6\uff09<\/h3>\n<p class=\"doc-p\">\u82e5\u56e0\u517c\u5bb9\u6027\u6682\u65f6\u65e0\u6cd5\u5347\u7ea7\uff0c\u5fc5\u987b\u5728\u4e1a\u52a1\u5c42\u505a\u8f93\u5165\u51c0\u5316\uff0c\u6838\u5fc3\u662f\u201c\u53ea\u5141\u8bb8\u5b89\u5168\u5b57\u7b26 + \u5f3a\u5236 basename + \u524d\u7f00\u6821\u9a8c\u201d\u4e09\u91cd\u9632\u5fa1\u3002<\/p>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"js\" data-enlighter-title=\"safeImageName.js \u8f93\u5165\u51c0\u5316\u4e2d\u95f4\u4ef6\">const path = require('path');\n\nconst MEDIA_ROOT = path.resolve('\/srv\/app\/uploads\/images');\n\nfunction safeImagePath(userInput) {\n  \/\/ 1. \u53ea\u4fdd\u7559\u6587\u4ef6\u540d\u90e8\u5206\uff0c\u5265\u79bb\u4efb\u4f55\u76ee\u5f55\u6bb5\n  const base = path.basename(userInput);\n  \/\/ 2. \u767d\u540d\u5355\u5b57\u7b26\u6821\u9a8c\n  if (!\/^[A-Za-z0-9._-]+.(png|jpg|jpeg|gif)$\/i.test(base)) {\n    throw new Error('invalid image name');\n  }\n  \/\/ 3. \u5f52\u4e00\u5316\u540e\u505a\u524d\u7f00\u767d\u540d\u5355\n  const resolved = path.resolve(MEDIA_ROOT, base);\n  if (!resolved.startsWith(MEDIA_ROOT + path.sep)) {\n    throw new Error('path traversal detected');\n  }\n  return resolved;\n}\n\nmodule.exports = { safeImagePath };\n<\/pre>\n<h3 class=\"doc-h3\">4.2 \u5f7b\u5e95\u4fee\u590d\uff1a\u5347\u7ea7\u4e0e\u67b6\u6784\u6536\u655b<\/h3>\n<p class=\"doc-p\">\u6839\u6cbb\u65b9\u6848\u662f\u5347\u7ea7\u5230\u5b98\u65b9\u4fee\u590d\u7248\u672c\uff0c\u5e76\u540c\u6b65\u5b8c\u6210\u4e24\u9879\u67b6\u6784\u6536\u655b\uff1a\u4e00\u662f\u628a\u201c\u6587\u4ef6\u540d\u201d\u4ece\u5916\u90e8\u8f93\u5165\u6539\u4e3a\u670d\u52a1\u7aef\u8d44\u6e90 ID \u6620\u5c04\uff1b\u4e8c\u662f\u5c06\u5bfc\u51fa\u8fdb\u7a0b\u964d\u6743\u8fd0\u884c\uff0c\u5207\u65ad\u9ad8\u4ef7\u503c\u6587\u4ef6\u7684\u8bfb\u53d6\u53ef\u80fd\u3002<\/p>\n<details class=\"doc-accordion\">\n<summary>\u70b9\u51fb\u5c55\u5f00\uff1a\u5347\u7ea7\u6267\u884c\u547d\u4ee4\u4e0e\u56de\u5f52\u9a8c\u8bc1\u811a\u672c<\/summary>\n<div class=\"doc-accordion-content\">\n<pre><code class=\"language-bash\"># 1. \u5347\u7ea7 ExcelJS \u81f3\u4fee\u590d\u7248\u672c\nnpm install exceljs@latest --save-exact\n\n# 2. \u9501\u5b9a\u5e76\u5ba1\u8ba1\nnpm audit fix\nnpm ls exceljs\n\n# 3. \u56de\u5f52\uff1a\u9a8c\u8bc1\u8def\u5f84\u7a7f\u8d8a\u5df2\u88ab\u62e6\u622a\nnode -e \"\nconst ExcelJS = require('exceljs');\nconst wb = new ExcelJS.stream.xlsx.WorkbookWriter({ filename: '\/tmp\/t.xlsx' });\ntry {\n  wb.addImage({ filename: '..\/..\/etc\/passwd', extension: 'png' });\n  console.log('STILL VULNERABLE');\n} catch (e) {\n  console.log('BLOCKED:', e.message);\n}\n\"\n<\/code><\/pre>\n<\/div>\n<\/details>\n<div class=\"baota-config-bar\"><span>process.setuid(&#8216;appuser&#8217;)  \/\/ \u5bfc\u51fa\u8fdb\u7a0b\u964d\u6743\u8fd0\u884c<\/span><span class=\"lang-tag\">JS<\/span><\/div>\n<h2 class=\"doc-h2\">\u4e94\u3001\u67b6\u6784\u7ea7\u9632\u5fa1\uff1a\u628a\u8def\u5f84\u7a7f\u8d8a\u6321\u5728\u4e1a\u52a1\u4e4b\u5916<\/h2>\n<p class=\"doc-p\">\u5355\u70b9\u4fee\u590d\u53ea\u80fd\u89e3\u51b3\u4e00\u6b21 CVE\uff0c\u4f53\u7cfb\u5316\u9632\u5fa1\u624d\u80fd\u907f\u514d\u4e0b\u4e00\u6b21\u3002\u7ed3\u5408\u672c\u6b21 ExcelJS \u4efb\u610f\u6587\u4ef6\u8bfb\u53d6\u6f0f\u6d1e\u7684\u6559\u8bad\uff0c\u6211\u5efa\u8bae\u5728\u67b6\u6784\u5c42\u56fa\u5316\u4e09\u6761\u57fa\u7ebf\uff1a<\/p>\n<ul class=\"doc-list\">\n<li><strong>\u8f93\u5165\u5373\u4e0d\u53ef\u4fe1\uff1a<\/strong>\u6240\u6709\u53c2\u4e0e\u6587\u4ef6\u8def\u5f84\u62fc\u63a5\u7684\u5916\u90e8\u5b57\u7b26\u4e32\uff0c\u7edf\u4e00\u8d70\u5b89\u5168\u5de5\u5177\u51fd\u6570\uff0c\u7981\u6b62\u88f8\u7528\u3002<\/li>\n<li><strong>\u8d44\u6e90 ID \u5316\uff1a<\/strong>\u5bf9\u5916\u53ea\u66b4\u9732\u8d44\u6e90 ID\uff0c\u670d\u52a1\u7aef\u901a\u8fc7\u6620\u5c04\u8868\u5b9a\u4f4d\u771f\u5b9e\u6587\u4ef6\uff0c\u4ece\u6e90\u5934\u6d88\u706d\u8def\u5f84\u6ce8\u5165\u9762\u3002<\/li>\n<li><strong>\u6700\u5c0f\u6743\u9650\u8fd0\u884c\uff1a<\/strong>\u5bfc\u51fa\u3001\u8f6c\u6362\u3001\u7f29\u7565\u56fe\u7b49\u6587\u4ef6\u5bc6\u96c6\u578b\u4efb\u52a1\u72ec\u7acb\u8fdb\u7a0b\u3001\u72ec\u7acb\u8d26\u53f7\u3001\u72ec\u7acb\u76ee\u5f55\uff0c\u9650\u5236\u53ef\u8bfb\u8303\u56f4\u3002<\/li>\n<\/ul>\n<p class=\"doc-p\">\u6b64\u5916\uff0c\u5efa\u8bae\u628a <code>npm audit<\/code> \u4e0e SCA \u626b\u63cf\u7eb3\u5165 CI \u95e8\u7981\uff0c\u5bf9 CVSS \u2265 7.0 \u7684\u6f0f\u6d1e\u963b\u65ad\u5408\u5e76\uff1b\u5bf9\u5bfc\u51fa\u7c7b\u63a5\u53e3\u589e\u52a0\u5f02\u5e38\u6587\u4ef6\u540d\u544a\u8b66\u89c4\u5219\uff0c\u4e00\u65e6\u51fa\u73b0 <code>..\/<\/code> \u6216\u7edd\u5bf9\u8def\u5f84\u7279\u5f81\u7acb\u5373\u89e6\u53d1\u5b89\u5168\u4e8b\u4ef6\u3002<\/p>\n<div class=\"doc-callout doc-callout-info\">\n<div class=\"doc-callout-title\">\ud83d\udca1 \u67b6\u6784\u6838\u5fc3\u51b3\u7b56<\/div>\n<p>\u5b89\u5168\u4fee\u590d\u7684\u4f18\u5148\u7ea7\u5e94\u662f\u201c\u5148\u6b62\u8840\u3001\u518d\u6839\u6cbb\u3001\u540e\u52a0\u56fa\u201d\u3002\u672c\u6b21\u4e8b\u4ef6\u4e2d\uff0c\u8f93\u5165\u51c0\u5316\u662f\u6b62\u8840\uff0c\u5347\u7ea7\u662f\u6839\u6cbb\uff0c\u8d44\u6e90 ID \u5316\u4e0e\u8fdb\u7a0b\u964d\u6743\u662f\u52a0\u56fa\uff0c\u4e09\u8005\u7f3a\u4e00\u4e0d\u53ef\u3002<\/p><\/div>\n<div class=\"doc-callout doc-callout-related\">\n<div class=\"doc-callout-title\">\ud83d\udd17 \u5ef6\u4f38\u9605\u8bfb\u4e0e\u4e13\u680f\u63a8\u8350<\/div>\n<ul class=\"doc-internal-links\">\n<li><strong>\u6240\u5c5e\u4e13\u680f\uff1a<\/strong><a href=\"https:\/\/btc354.com\/index.php\/category\/security\/\">\u6d4f\u89c8\u66f4\u591a\u3010\u5b89\u5168\u6f0f\u6d1e\u3011\u6280\u672f\u67b6\u6784\u4e0e\u5de5\u7a0b\u5b9e\u6218\u6587\u7ae0<\/a><\/li>\n<li><strong>\u63a8\u8350\u6df1\u5ea6\u9605\u8bfb\uff1a<\/strong><a href=\"https:\/\/btc354.com\/index.php\/2026\/11\/13\/pulsemate-security-81862843eeb1f0dcbd462c3de4e755711e1267f795eb24ded543dcbcc8c5c39e\/\">Vvveb \u4e3b\u9898\u4e0a\u4f20\u6f0f\u6d1e\u6df1\u5ea6\u5256\u6790\uff1aCVE-2026-126378 \u4ece strpos() \u5f31\u5339\u914d\u5230 nginx RCE \u7684\u5b8c\u6574\u653b\u51fb\u94fe\u4e0e\u52a0\u56fa\u5b9e\u6218<\/a><\/li>\n<li><strong>\u63a8\u8350\u6df1\u5ea6\u9605\u8bfb\uff1a<\/strong><a href=\"https:\/\/btc354.com\/index.php\/2026\/11\/12\/pulsemate-security-d02129231e48745b03b6f4304e3cff9a647ff2395bc944be2c650d026e11b0ff\/\">PostgreSQL \u5185\u5b58\u8d8a\u754c\u6f0f\u6d1e\u6df1\u5ea6\u5256\u6790\uff1aCVE-2026-116328 \u6574\u6570\u56de\u7ed5\u5982\u4f55\u51fb\u7a7f Generation \u5185\u5b58\u4e0a\u4e0b\u6587\u5e76\u5b9e\u73b0\u4efb\u610f\u4ee3\u7801\u6267\u884c<\/a><\/li>\n<li><strong>\u5168\u7ad9\u6280\u672f\u5f52\u6863\uff1a<\/strong><a href=\"https:\/\/btc354.com\/\">\u8fd4\u56de \u4e2a\u4eba\u5b66\u4e60\u7ad9\u70b9 \u9996\u9875\u63a2\u7d22\u66f4\u591a\u6280\u672f\u524d\u6cbf<\/a><\/li>\n<\/ul>\n<\/div>\n<div class=\"doc-ref-box\">\n  <strong>\u539f\u6587\u51fa\u5904\u4e0e\u6743\u5a01\u6eaf\u6e90\u58f0\u660e\uff1a<\/strong><br \/>\n  \u672c\u6587\u6838\u5fc3\u6280\u672f\u80cc\u666f\u6e90\u81ea\u6d77\u5916\u4e00\u7ebf\u6280\u672f\u7814\u7a76\uff1a<br \/>\n  <a href=\"https:\/\/nvd.nist.gov\/vuln\/detail\/CVE-2026-128347\" target=\"_blank\" rel=\"noopener noreferrer\">NVD &#8211; CVE-2026-128347 \u5b98\u65b9\u901a\u544a<\/a>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>\u3010ExcelJS \u4efb\u610f\u6587\u4ef6\u8bfb\u53d6\u6f0f\u6d1e\u3011\u6df1\u5ea6\u5256\u6790 CVE-2026-128347\uff1aExcelJS 4.4.0 \u53ca\u4ee5\u4e0b\u7248\u672c\u6d41\u5f0f WorkbookWriter \u5b58\u5728\u9ad8\u5371\u4efb\u610f\u6587\u4ef6\u8bfb\u53d6\u6f0f\u6d1e\uff08CVSS 8.7\uff09\u3002\u672c\u6587\u4ece addImage \u8def\u5f84\u7a7f\u8d8a\u539f\u7406\u3001addMedia \u5d4c\u5165\u673a\u5236\u51fa\u53d1\uff0c\u7ed9\u51fa\u6f0f\u6d1e\u590d\u73b0\u3001\u5f71\u54cd\u9762\u8bc4\u4f30\u3001&#8230;<\/p>\n","protected":false},"author":2,"featured_media":1050,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[424],"tags":[596,595,321,597,285],"class_list":["post-1049","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-security","tag-cve-2026-128347","tag-exceljs","tag-node-js-","tag-597","tag-285"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>ExcelJS 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