CVE-2021-43448

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Published Jan 23, 2023 CVSS 3.1 · 5.3 Medium EPSS 1.0% KEV · Not listed

Description

ONLYOFFICE all versions as of 2021-11-08 is vulnerable to Improper Input Validation. A lack of input validation can allow an attacker to spoof the names of users who interact with a document, if the document id is known.

Affected Products

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

n/a

n/a

affected

Version	Status	Constraints
`n/a`	affected	—

Configuration 1 [-]

cpe:2.3:a:onlyoffice:server:*:*:*:*:*:*:*:*

No data.

No data available yet.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source	ID	Title
EUVD	EUVD-2021-30381	ONLYOFFICE all versions as of 2021-11-08 is vulnerable to Improper Input Validation. A lack of input validation can allow an attacker to spoof the names of users who interact with a document, if the document id is known.

Metrics

No CVSS v4.0

Attack Vector Network

Attack Complexity High

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact High

Availability Impact None

User Interaction Required

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploit prediction score: 1.0% (1.031% probability within 30 days)

Exploitation poc

Automatable no

Technical Impact partial

References

Link	Providers
https://github.com/ONLYOFFICE/server
https://labs.nettitude.com/blog/exploiting-onlyoffice-web-sockets-for-unauthenticated-remote-code-execution/
https://www.onlyoffice.com/

History

Apr 2, 2025 4:15 PM Scoring metrics updated View changes

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

Subscriptions

Onlyoffice Server

Weaknesses

CWE-20

Sources

CVE record Updated: Apr 2, 2025, 4:00 PM

Status: PUBLISHED
Assigner: mitre
Published: Jan 23, 2023, 12:00 AM
Updated: Apr 2, 2025, 4:00 PM
Reserved: Nov 8, 2021, 12:00 AM

View source JSON

Vulnrichment Updated: Aug 4, 2024, 3:55 AM

Updated: Aug 4, 2024, 3:55 AM

NVD Updated: Jun 17, 2026, 4:10 AM

Status: Modified
Published: Jan 23, 2023, 3:15 PM
Modified: Jun 17, 2026, 4:10 AM

View source JSON

Red Hat No data

No data.

OpenCVE enrichment No data

No data.

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