Filtered by vendor Mit Subscriptions
Filtered by product Scratch-vm Subscriptions
Total 1 CVE
CVE Vendors Products Updated CVSS v3.1
CVE-2020-14000 1 Mit 1 Scratch-vm 2024-08-04 9.8 Critical
MIT Lifelong Kindergarten Scratch scratch-vm before 0.2.0-prerelease.20200714185213 loads extension URLs from untrusted project.json files with certain _ characters, resulting in remote code execution because the URL's content is treated as a script and is executed as a worker. The responsible code is getExtensionIdForOpcode in serialization/sb3.js. The use of _ is incompatible with a protection mechanism in older versions, in which URLs were split and consequently deserialization attacks were prevented. NOTE: the scratch.mit.edu hosted service is not affected because of the lack of worker scripts.