CVE-2021-43448

Public Exploit

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.

Category

5.3
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.25%
Vendor Advisory onlyoffice.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://github.com/ONLYOFFICE/server third party advisory
https://www.onlyoffice.com/ product vendor advisory
https://labs.nettitude.com/blog/exploiting-onlyoffice-web-sockets-for-unauthenticated-remote-code-execution/ exploit third party advisory mitigation

Frequently Asked Questions

What is the severity of CVE-2021-43448?
CVE-2021-43448 has been scored as a medium severity vulnerability.
How to fix CVE-2021-43448?
To fix CVE-2021-43448, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-43448 being actively exploited in the wild?
It is possible that CVE-2021-43448 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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