CVE-2023-50883: ONLYOFFICE Document Server

Medium severity, CVSS 6.1. EPSS: 0.6% chance of exploitation in the next 30 days.

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.

Affected products

• ONLYOFFICE Document Server: before 8.0.1 (fixed in 8.0.1)

Published 2024-09-09. Last modified 2026-06-17.