Arbitrary JavaScript Code Execution in Budibase Cloud Platform

CVE-2026-27702

What is CVE-2026-27702?

Budibase, a low code platform for developing internal tools, has a code injection vulnerability affecting its cloud service prior to version 3.30.4. This vulnerability enables authenticated users, including those on the free tier, to execute arbitrary JavaScript code on the server due to unsafe evaluation of user-controlled view functions. The issue arises in the in-memory view filtering implementation, where user inputs are not properly sanitized. The potential impact is significant, as it can lead to unauthorized access to sensitive information, including database credentials and environmental secrets, allowing attackers to compromise the integrity of stored data. The vulnerability only affects Budibase Cloud deployments, as self-hosted instances utilize CouchDB views, which are not susceptible to this issue. Budibase has released a patch in version 3.30.4 addressing this security concern.

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