CVE-2021-43446

Public Exploit

Description

ONLYOFFICE all versions as of 2021-11-08 is vulnerable to Cross Site Scripting (XSS). The "macros" feature of the document editor allows malicious cross site scripting payloads to be used.

Category

6.1
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 4.38% Top 15%
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://onlyoffice.com/ product vendor advisory
https://labs.nettitude.com/blog/exploiting-onlyoffice-web-sockets-for-unauthenticated-remote-code-execution/ mitigation third party advisory exploit

Frequently Asked Questions

What is the severity of CVE-2021-43446?
CVE-2021-43446 has been scored as a medium severity vulnerability.
How to fix CVE-2021-43446?
To fix CVE-2021-43446, 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-2021-43446 being actively exploited in the wild?
It is possible that CVE-2021-43446 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~4% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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