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CVE-2021-43448

5.3 mediumEPSS 1.0%

Medium (5.3) in onlyoffice server. EPSS 1.0% chance of exploitation in the next 30 days.

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.

Severity

CVSS 3.1

5.3 medium
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:N
EPSS
1.0% chance of exploitation in the next 30 days; higher than 63% of CVEs (scores of 2026-10-31)
CWE
CWE-20
Published
Modified
Record from
the NVD, synced

Affected

References

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