Critical CVE-2026-48768 Vulnerability in TypeBot Exposes Users to File Upload Attacks
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- •CVE-2026-48768 affects TypeBot versions 3.16.1 and earlier, allowing unauthenticated file uploads.
- •Attackers can upload malicious files to arbitrary paths, impacting multiple tenants.
- •The vulnerability has been rated critical, necessitating immediate remediation actions.
A critical vulnerability, CVE-2026-48768, was disclosed affecting TypeBot versions 3.16.1 and earlier. The flaw allows unauthenticated users to exploit the POST /api/blocks/file-input/v3/generate-upload-url endpoint, which improperly handles unsanitized fileName inputs. This enables anonymous visitors to upload malicious HTML, SVG, or JS files to arbitrary S3 object paths, potentially affecting multiple tenants. The vulnerability was published on June 17, 2026, and poses severe risks to any deployed bots using the affected versions. Immediate intervention is required to mitigate the risks associated with this flaw. Organizations using TypeBot are urged to assess their exposure and implement necessary security measures.
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