CVE-2023-50883 — MEDIUM (6.1)

Q: How severe is CVE-2023-50883?

CVE-2023-50883 has been rated MEDIUM with a CVSS base score of 6.1/10. Review the CVSS metrics above for detailed severity breakdown.

Q: Is there a patch for CVE-2023-50883?

Check the references section above for vendor advisories and patch information. Affected products include: Onlyoffice Document Server.

Vulnerability 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.

CVSS Score

6.1

MEDIUM

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

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

CHANGED

Confidentiality

LOW

Integrity

LOW

Availability

NONE

Affected Products

Vendor	Product	Versions
Onlyoffice	Document Server	< 8.0.1

Related Weaknesses (CWE)

CWE-79

References

https://www.onlyoffice.com/Product
https://www.syss.de/fileadmin/dokumente/Publikationen/Advisories/SYSS-2023-027.tExploitThird Party Advisory
https://www.syss.de/pentest-blog/cross-site-scripting-schwachstelle-in-onlyofficThird Party Advisory

FAQ

What is CVE-2023-50883?

CVE-2023-50883 is a vulnerability with a CVSS score of 6.1 (MEDIUM). 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 Func...

How severe is CVE-2023-50883?

CVE-2023-50883 has been rated MEDIUM with a CVSS base score of 6.1/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2023-50883?

Check the references section above for vendor advisories and patch information. Affected products include: Onlyoffice Document Server.