CVE-2023-50883 Information

Description

ONLYOFFICE Docs before 8.0.1 allows XSS because a macro is an immediately-invoked function expression (IIFE) and therefore a sandbox escape is possible by directly calling the constructor of the Function object. NOTE: this issue exists because of an incorrect fix for CVE-2021-43446.

Reference

https://www.onlyoffice.com/ https://www.syss.de/fileadmin/dokumente/Publikationen/Advisories/SYSS-2023-027.txt https://www.syss.de/pentest-blog/cross-site-scripting-schwachstelle-in-onlyoffice-docs-syss-2023-027