CVE-2021-43444

Severity Score

7.5

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

Attend

*SSVC

Descriptions

ONLYOFFICE all versions as of 2021-11-08 is affected by Incorrect Access Control. Signed document download URLs can be forged due to a weak default URL signing key.

Todas las versiones de ONLYOFFICE a partir del 08/11/2021 se ven afectadas por un control de acceso incorrecto. Las URL de descarga de documentos firmados se pueden falsificar debido a una clave de firma de URL predeterminada débil.

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

High

Availability

None

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

None

Integrity

Complete

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:Attend

Exploitation

None

Automatable

Yes

Tech. Impact

Partial

* Organization's Worst-case Scenario

Timeline

2021-11-08 CVE Reserved
2023-01-23 CVE Published
2025-03-30 EPSS Updated
2025-04-02 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-287: Improper Authentication

CAPEC

References (3)

URL	Tag	Source
https://github.com/ONLYOFFICE/server	Third Party Advisory
https://labs.nettitude.com/blog/exploiting-onlyoffice-web-sockets-for-unauthenticated-remote-code-execution	Mitigation

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://www.onlyoffice.com	2023-01-31

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Onlyoffice Search vendor "Onlyoffice"		Server Search vendor "Onlyoffice" for product "Server"				<= 7.0.0.49 Search vendor "Onlyoffice" for product "Server" and version " <= 7.0.0.49"		-		Affected