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Medium severity · published Jan 23, 2023
CVE-2021-43448
ONLYOFFICE all versions as of 2021-11-08 is vulnerable to Improper Input Validation
5.3
CVSS
1%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:N
Attack vector
Network
Complexity
High
Privileges
None
User interaction
Required
Confidentiality
None
Integrity
High
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.0% · higher than 63% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
SE
Server · Onlyoffice
through 7.0.0.49 · source: NVD
Affected product
SE
Server
Onlyoffice
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-43448
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-43448
Third Party Advisory
https://github.com/ONLYOFFICE/server
Exploit
https://labs.nettitude.com/blog/exploiting-onlyoffice-web-sockets-for-unauthenticated-remote-code-execution/
Product
https://www.onlyoffice.com/
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