CVE-2023-50883

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.

CVSS v3.1 NVD

6.1 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

EPSS

0.61% chance of exploitation in the next 30 days, 48th percentile

Published

2024-09-09

Updated

2024-09-10

Proof-of-concept exploits (1)

• https://www.syss.de/fileadmin/dokumente/Publikationen/Advisories/SYSS-2023-027.txt

Security advisories

• https://www.syss.de/pentest-blog/cross-site-scripting-schwachstelle-in-onlyoffice-docs-sy…
• https://www.onlyoffice.com

References

• CVE Record
• NVD entry