{"id":44220,"date":"2026-04-12T03:32:44","date_gmt":"2026-04-12T03:32:44","guid":{"rendered":"http:\/\/localhost\/?p=44220"},"modified":"2026-04-12T03:32:44","modified_gmt":"2026-04-12T03:32:44","slug":"file-browsers-signup-grants-execution-permissions-when-default-permissions-includes-execution","status":"publish","type":"post","link":"https:\/\/zero.redgem.net\/?p=44220","title":{"rendered":"File Browser&#8217;s Signup Grants Execution Permissions When Default Permissions Includes Execution_CVE-2026-34528"},"content":{"rendered":"<p>{&#8220;lastseen&#8221;:&#8221;&#8221;,&#8221;description&#8221;:&#8221;File Browser is a file managing interface for uploading, deleting, previewing, renaming, and editing files within a specified directory. Prior to version 2.62.2, the signupHandler in File Browser applies default user permissions via d.settings.Defaults.Apply(user), then strips only Admin. The Execute permission and Commands list from the default user template are not stripped. When an administrator has enabled signup, server-side execution, and set Execute=true in the default user template, any unauthenticated user who self-registers inherits shell execution capabilities and can run arbitrary commands on the server. 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Prior to version 2.62.2, the signupHandler&#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":[6,8,52,12,15,13,7,11,5],"class_list":["post-44220","post","type-post","status-publish","format-standard","hentry","category-category_cve","tag-cve","tag-cvss","tag-cvss-81","tag-exploit","tag-high","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>File Browser&#039;s Signup Grants Execution Permissions When Default Permissions Includes Execution_CVE-2026-34528 - 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=44220\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"File Browser&#039;s Signup Grants Execution Permissions When Default Permissions Includes Execution_CVE-2026-34528 - zero redgem\" \/>\n<meta property=\"og:description\" content=\"{&#8220;lastseen&#8221;:&#8221;&#8221;,&#8221;description&#8221;:&#8221;File Browser is a file managing interface for uploading, deleting, previewing, renaming, and editing files within a specified directory. 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