ONLYOFFICE Docs path traversal allows remote code execution

critical severity · exploited in the wild · published 2021-01-26

When JWT is enabled, a traversal sequence in an image upload parameter lets an attacker reach files outside the intended folder and run code on the server. The flaw is being actively exploited.

Fixed in: 5.6.3

CVE: CVE-2021-3199

Source: GitHub Advisory

Am I affected?

You are affected if the installed version is older than 5.6.3. Check the version you have and update to 5.6.3 or later. The fixed version is verified against a vendor or advisory source.

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