CVE-2021-43446

MEDIUM

Published Jan 23, 20233y ago · Modified Jun 17, 20261w ago

6.1 CVSS 3.1

Medium

Published Jan 23, 2023 3y ago

Last Modified Jun 17, 2026 1w ago

Description

ONLYOFFICE all versions as of 2021-11-08 is vulnerable to Cross Site Scripting (XSS). The "macros" feature of the document editor allows malicious cross site scripting payloads to be used.

CVSS Details

Base Score

6.1

Exploitability

2.8

Impact

2.7

Vector string

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

Threat Intelligence

No active exploitation signals — not in CISA KEV and no EPSS score yet.

Exploit & Patch Status

Public Exploit Known

No Patch Available

Weaknesses 1

CWE-79 Cross-site Scripting Injection

Affected Products 1

Vendor	Product	Version	Range
onlyoffice	server	*	≤7.0.0.49

References 3

github.com https://github.com/ONLYOFFICE/server

Third Party Advisory
labs.nettitude.com https://labs.nettitude.com/blog/exploiting-onlyoffice-web-sockets-for-unauthenticated-remote-code-execution/

ExploitMitigationThird Party Advisory
onlyoffice.com https://onlyoffice.com/

ProductVendor Advisory

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.