CVE-2021-3199Critical· 9.8▾ Abyssal⚠ Exploited in the wildPoC availableDirectory traversal with remote code execution can occur in /upload in ONLYOFFICE Document Server before 5.6.3, when JWT is used, via a /.. sequence in an image upload parameter.
▾ Abyssal zone — Critical with a public exploit or in-the-wild use
impact 53.9 · likelihood 1.6 · exploitation 18
A public proof-of-concept already exists for this vulnerability — see Exploit availability below.
Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via NVD
Last analysed / modified upstream
8.2%
Directory traversal with remote code execution can occur in /upload in ONLYOFFICE Document Server before 5.6.3, when JWT is used, via a /.. sequence in an image upload parameter.
document_server < 5.6.3Upgrade past the affected range:
document_server 5.6.3Connected by shared product, vendor, weakness, or advisory.
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