Vulnerability Details : CVE-2021-43447
Potential exploit
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.
Products affected by CVE-2021-43447
- cpe:2.3:a:onlyoffice:server:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-43447
0.24%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 48 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-43447
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
7.5
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N |
3.9
|
3.6
|
134c704f-9b21-4f2e-91b3-4a467353bcc0 | 2025-04-02 |
|
7.5
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N |
3.9
|
3.6
|
NIST |
CWE ids for CVE-2021-43447
-
When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.Assigned by: nvd@nist.gov (Primary)
-
The product does not perform any authentication for functionality that requires a provable user identity or consumes a significant amount of resources.Assigned by:
- 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary)
- nvd@nist.gov (Primary)
References for CVE-2021-43447
-
https://www.onlyoffice.com/
ONLYOFFICE - Secure Online Office | ONLYOFFICEProduct;Vendor Advisory
-
https://github.com/ONLYOFFICE/server
GitHub - ONLYOFFICE/server: The backend server software layer which is the part of ONLYOFFICE Document Server and is the base for all other componentsThird Party Advisory
-
https://labs.nettitude.com/blog/exploiting-onlyoffice-web-sockets-for-unauthenticated-remote-code-execution/
Remote Code Execution in ONLYOFFICE - Nettitude LabsExploit;Mitigation;Third Party Advisory
Jump to