{"id":22456,"date":"2025-10-21T00:26:57","date_gmt":"2025-10-21T00:26:57","guid":{"rendered":"http:\/\/localhost\/?p=22456"},"modified":"2025-10-21T00:26:57","modified_gmt":"2025-10-21T00:26:57","slug":"vite-allows-serverfsdeny-bypass-via-backslash-on-windows","status":"publish","type":"post","link":"https:\/\/zero.redgem.net\/?p=22456","title":{"rendered":"vite allows server.fs.deny bypass via backslash on Windows_CVE-2025-62522"},"content":{"rendered":"<p>{&#8220;lastseen&#8221;:&#8221;&#8221;,&#8221;description&#8221;:&#8221;Vite is a frontend tooling framework for JavaScript. In versions from 2.9.18 to before 3.0.0, 3.2.9 to before 4.0.0, 4.5.3 to before 5.0.0, 5.2.6 to before 5.4.21, 6.0.0 to before 6.4.1, 7.0.0 to before 7.0.8, and 7.1.0 to before 7.1.11, files denied by server.fs.deny were sent if the URL ended with \\\\ when the dev server is running on Windows. Only apps explicitly exposing the Vite dev server to the network and running the dev server on Windows were affected. This issue has been patched in versions 5.4.21, 6.4.1, 7.0.8, and 7.1.11.&#8221;,&#8221;published&#8221;:&#8221;2025-10-20T19:57:13.188Z&#8221;,&#8221;modified&#8221;:&#8221;2025-10-20T20:17:08.287Z&#8221;,&#8221;type&#8221;:&#8221;cve&#8221;,&#8221;title&#8221;:&#8221;vite allows server.fs.deny bypass via backslash on Windows&#8221;,&#8221;source&#8221;:&#8221;GitHub_M&#8221;,&#8221;references&#8221;:&#8221;https:\/\/github.com\/vitejs\/vite\/security\/advisories\/GHSA-93m4-6634-74q7\\nhttps:\/\/github.com\/vitejs\/vite\/commit\/f479cc57c425ed41ceb434fecebd63931b1ed4ed&#8221;,&#8221;id&#8221;:&#8221;CVE-2025-62522&#8243;,&#8221;bulletinFamily&#8221;:&#8221;&#8221;,&#8221;cwe&#8221;:[&#8220;CWE-22&#8243;],&#8221;cvelist&#8221;:null,&#8221;sourceData&#8221;:&#8221;vitejs vite \\u003e= 7.1.0, \\u003c 7.1.11\\nvitejs vite \\u003e= 7.0.0, \\u003c 7.0.8\\nvitejs vite \\u003e= 6.0.0, \\u003c 6.4.1\\nvitejs vite \\u003e= 5.2.6, \\u003c 5.4.21\\nvitejs vite \\u003e= 4.5.3, \\u003c 5.0.0\\nvitejs vite \\u003e= 3.2.9, \\u003c 4.0.0\\nvitejs vite \\u003e= 2.9.18, \\u003c 3.0.0&#8243;,&#8221;sourceHref&#8221;:&#8221;&#8221;,&#8221;cvss&#8221;:{&#8220;score&#8221;:6,&#8221;severity&#8221;:&#8221;MEDIUM&#8221;,&#8221;vector&#8221;:&#8221;CVSS:4.0\/AV:N\/AC:L\/AT:P\/PR:N\/UI:P\/VC:H\/VI:N\/VA:N\/SC:N\/SI:N\/SA:N&#8221;,&#8221;version&#8221;:&#8221;4.0&#8243;},&#8221;cvss2&#8243;:{},&#8221;cvss3&#8243;:{&#8220;version&#8221;:&#8221;&#8221;,&#8221;vectorString&#8221;:&#8221;&#8221;,&#8221;baseScore&#8221;:0,&#8221;baseSeverity&#8221;:&#8221;&#8221;,&#8221;attackVector&#8221;:&#8221;&#8221;,&#8221;attackComplexity&#8221;:&#8221;&#8221;,&#8221;privilegesRequired&#8221;:&#8221;&#8221;,&#8221;userInteraction&#8221;:&#8221;&#8221;,&#8221;scope&#8221;:&#8221;&#8221;,&#8221;confidentialityImpact&#8221;:&#8221;&#8221;,&#8221;integrityImpact&#8221;:&#8221;&#8221;,&#8221;availabilityImpact&#8221;:&#8221;&#8221;,&#8221;cvssV3&#8243;:{&#8220;version&#8221;:&#8221;&#8221;,&#8221;vectorString&#8221;:&#8221;&#8221;,&#8221;baseScore&#8221;:0,&#8221;baseSeverity&#8221;:&#8221;&#8221;,&#8221;attackVector&#8221;:&#8221;&#8221;,&#8221;attackComplexity&#8221;:&#8221;&#8221;,&#8221;privilegesRequired&#8221;:&#8221;&#8221;,&#8221;userInteraction&#8221;:&#8221;&#8221;,&#8221;scope&#8221;:&#8221;&#8221;,&#8221;confidentialityImpact&#8221;:&#8221;&#8221;,&#8221;integrityImpact&#8221;:&#8221;&#8221;,&#8221;availabilityImpact&#8221;:&#8221;&#8221;}},&#8221;href&#8221;:&#8221;&#8221;,&#8221;category_name&#8221;:&#8221;CVE&#8221;,&#8221;post_link&#8221;:&#8221;&#8221;,&#8221;product&#8221;:&#8221;vite&#8221;,&#8221;version&#8221;:&#8221;\\u003e= 7.1.0, \\u003c 7.1.11&#8243;,&#8221;vendor&#8221;:&#8221;vitejs&#8221;,&#8221;ai_description&#8221;:&#8221;&#8221;,&#8221;ai_severity&#8221;:&#8221;&#8221;,&#8221;ai_vendor&#8221;:&#8221;&#8221;,&#8221;ai_product&#8221;:&#8221;&#8221;,&#8221;ai_version&#8221;:&#8221;&#8221;,&#8221;ai_score&#8221;:0}<\/p>\n","protected":false},"excerpt":{"rendered":"<p>{&#8220;lastseen&#8221;:&#8221;&#8221;,&#8221;description&#8221;:&#8221;Vite is a frontend tooling framework for JavaScript. In versions from 2.9.18 to before 3.0.0, 3.2.9 to before 4.0.0, 4.5.3 to before 5.0.0, 5.2.6 to&#8230;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2],"tags":[6,8,37,12,21,13,7,11,5],"class_list":["post-22456","post","type-post","status-publish","format-standard","hentry","category-category_cve","tag-cve","tag-cvss","tag-cvss-60","tag-exploit","tag-medium","tag-news","tag-security","tag-tapic","tag-vulnerability"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.5 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>vite allows server.fs.deny bypass via backslash on Windows_CVE-2025-62522 - zero redgem<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/zero.redgem.net\/?p=22456\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"vite allows server.fs.deny bypass via backslash on Windows_CVE-2025-62522 - zero redgem\" \/>\n<meta property=\"og:description\" content=\"{&#8220;lastseen&#8221;:&#8221;&#8221;,&#8221;description&#8221;:&#8221;Vite is a frontend tooling framework for JavaScript. 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