{"id":80715,"date":"2026-06-18T02:43:41","date_gmt":"2026-06-17T23:13:41","guid":{"rendered":"https:\/\/afaghhosting.net\/blog\/cve-2026-48768-typebot-unauthenticated-arbitrary-s3-object-write-in-generate-upload-url-via-unsanitized-filename\/"},"modified":"2026-06-18T02:43:41","modified_gmt":"2026-06-17T23:13:41","slug":"cve-2026-48768-typebot-unauthenticated-arbitrary-s3-object-write-in-generate-upload-url-via-unsanitized-filename","status":"publish","type":"post","link":"https:\/\/afaghhosting.net\/blog\/cve-2026-48768-typebot-unauthenticated-arbitrary-s3-object-write-in-generate-upload-url-via-unsanitized-filename\/","title":{"rendered":"CVE-2026-48768 &#8211; TypeBot: Unauthenticated arbitrary s3 object write in generate-upload-url via unsanitized fileName"},"content":{"rendered":"<p>CVE ID :CVE-2026-48768<\/p>\n<p>  Published : June 17, 2026, 11:13 p.m. | 2\u00a0hours, 28\u00a0minutes ago<\/p>\n<p>  Description :TypeBot is a chatbot builder tool. In versions 3.16.1 and earlier, POST \/api\/blocks\/file-input\/v3\/generate-upload-url is unauthenticated and uses unsanitized fileName input to construct public\/ S3 object keys, while issuing presigned PUT URLs that do not bind Content-Type. As a result, any anonymous visitor to a published bot with a file input can upload attacker-controlled HTML, SVG, or JS to attacker-chosen subpaths, including other tenants\u2019 publicly served result paths, enabling arbitrary content hosting and potential stored XSS on the storage origin. ..\/ traversal is blocked by S3\/MinIO canonicalization (signature mismatch), but forward-slash path injection is exploitable. This issue has been fixed in version 3.17.0.<\/p>\n<p>  Severity: 0.0 | NA<\/p>\n<p>  Visit the link for more details, such as CVSS details, affected products, timeline, and more&#8230;\u00a0<\/p>\n","protected":false},"excerpt":{"rendered":"<p>CVE ID :CVE-2026-48768 Published : June 17, 2026, 11:13 p.m. | 2\u00a0hours, 28\u00a0minutes ago Description :TypeBot is a chatbot builder tool. In versions 3.16.1 and earlier, POST \/api\/blocks\/file-input\/v3\/generate-upload-url is unauthenticated and uses unsanitized fileName input to construct public\/ S3 object keys, while issuing presigned PUT URLs that do not bind Content-Type. As a result, any &hellip;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[26],"tags":[],"class_list":["post-80715","post","type-post","status-publish","format-standard","hentry","category-vulnerability"],"_links":{"self":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts\/80715","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/comments?post=80715"}],"version-history":[{"count":0,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts\/80715\/revisions"}],"wp:attachment":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/media?parent=80715"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/categories?post=80715"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/tags?post=80715"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}