CVE-2021-43447
CVSS v3
7.5
HIGH
EPSS Score
1.3 %
exploit probability, as of 2026-09-25
CISA KEV
No
known exploited
Exploitation
—
SSVC status
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.
Technical details
- Published
- 2023-01-23
Frequently asked questions
What is CVE-2021-43447?
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.
Is CVE-2021-43447 actively exploited?
Active exploitation of CVE-2021-43447 has not been confirmed. Its EPSS score was 1.3% on 2026-09-25, the estimated probability of exploitation in the next 30 days.
What is the CVSS score for CVE-2021-43447?
CVE-2021-43447 has a CVSS v3 base score of 7.5 (HIGH severity).
Is CVE-2021-43447 affecting your environment?
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