Vulnerability Description
ONLYOFFICE all versions as of 2021-11-08 is affected by Incorrect Access Control. An authentication bypass in the document editor allows attackers to edit documents without authentication.
CVSS Score
7.5
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Onlyoffice | Server | <= 7.0.0.49 |
Related Weaknesses (CWE)
References
- https://github.com/ONLYOFFICE/serverThird Party Advisory
- https://labs.nettitude.com/blog/exploiting-onlyoffice-web-sockets-for-unauthentiExploitMitigationThird Party Advisory
- https://www.onlyoffice.com/ProductVendor Advisory
- https://github.com/ONLYOFFICE/serverThird Party Advisory
- https://labs.nettitude.com/blog/exploiting-onlyoffice-web-sockets-for-unauthentiExploitMitigationThird Party Advisory
- https://www.onlyoffice.com/ProductVendor Advisory
FAQ
What is CVE-2021-43447?
CVE-2021-43447 is a vulnerability with a CVSS score of 7.5 (HIGH). ONLYOFFICE all versions as of 2021-11-08 is affected by Incorrect Access Control. An authentication bypass in the document editor allows attackers to edit documents without authentication.
How severe is CVE-2021-43447?
CVE-2021-43447 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2021-43447?
Check the references section above for vendor advisories and patch information. Affected products include: Onlyoffice Server.