Cross Site Scripting Vulnerability in ONLYOFFICE Document Editor
CVE-2021-43446

6.1MEDIUM

Key Information:

Vendor

Onlyoffice

Status
Server
Vendor
CVE Published:
23 January 2023

What is CVE-2021-43446?

The ONLYOFFICE Document Editor, available in all versions as of November 8, 2021, is susceptible to Cross Site Scripting (XSS) attacks. This vulnerability arises from the 'macros' feature, which permits attackers to inject malicious scripts. If successfully exploited, this could lead to the execution of unwarranted scripts in the user's browser context. Organizations utilizing ONLYOFFICE are urged to assess their implementations and apply the necessary updates to maintain security.

References

https://github.com/ONLYOFFICE/server
https://onlyoffice.com/
https://labs.nettitude.com/blog/exploiting-onlyoffice-web...

EPSS Score

5% chance of being exploited in the next 30 days.

CVSS V3.1

Score:
6.1
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

JSON
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CVE-2021-43446 : Cross Site Scripting Vulnerability in ONLYOFFICE Document Editor