CVE-2021-3199· onlyoffice / docs· CWE-22
ONLYOFFICE Docs Server Path Traversal Vulnerability
Exploited in the wild. Listed by CISA on 2026-10-08; known to be used by ransomware.
30.2%likelihood of exploitation, next 30 days
98%of all CVEs are less likely
Nonecheck to confirm it
ONLYOFFICE Docs contains a path traversal vulnerability that can occur when JWT is used, via a /.. sequence in an image upload parameter and could allow for remote code execution.
No ready check is stored for this CVE. Confirm it by hand from the references.
References
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